初中數(shù)學(xué)計算題(200道)解析

1、初中數(shù)學(xué)計算題（200道）(-1. 5) X (-9)-12H- (-4)564-(-7)-2 4-5+0. 43.57X294-(-4)5. 64-(-2. 8)-(-50) 4-29. 6+(-7. 3)X(-5)-(-7)12. 34-5. 6+(-1. 2)(-75. 6) 4- (1/4+1/5)9. 5X (-9. 5) 4-1/295. 77+(2) + (34. 6)(-51. 88) 4-2-(-5)X241.25* (-3) +70* (-5) +5* (-3) +259999*3+101*11*(101-92)(23/4-3/4)*(3*6+2)3/7 X 49/9 -

2、4/38/9 X 15/36 + 1/2712X 5/6 - 2/9 X38X 5/4 + 1/464- 3/8 - 3/8 H-64/7 X 5/9 + 3/7 X 5/95/2 - ( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 )9X5/6+ 5/63/4 X 8/9 - 1/37 X 5/49 + 3/146 X ( 1/2 + 2/3 )8 X 4/5 + 831 X 5/6 -9/7 - ( 2/75/9 X 18 -4/5 X 25/1614 X 8/7 - 17/32 - 3/4X 11/55/6-10/21 )14 X 2/7+ 2/3 X 3/4 5/6 X

3、12/15 X 9/243X2/9+ 1/35/7 X 3/25 + 3/73/14 X 2/3 + 1/61/5 X 2/3 + 5/69/22 + 1/11 4- 1/25/3 X 11/5 + 4/345 X 2/3 + 1/3 X 157/19 + 12/19 X 5/61/4 + 3/4 4- 2/38/7 X 21/16 + 1/2101 X 1/5 - 1/5 X 2150 + 1604-40120-1444-18+35347+45X2-41604-5237X (58+37) + (64-9X5)己做954- (64-45)178-1454-5X6+42812-7004- (9+

4、31X11)85+14X (14+2084-26)120-36X44-18+35(58+37) 4- (64-9X5)(6. 8-6. 8X0. 55)4-8.50. 12X 4.84-0. 12X4.8(3.2X1. 5+2. 5) 4-1.66-1.64-4= 5. 38+7. 85-5. 37=7. 2-0. 8-1. 2X5= 6-1. 19X3-0. 43=6. 5X (4. 8-1. 2X4)=5. 8X (3. 87-0. 13) +4.2X3. 7432. 52- (6+9. 7284-3.2) X2. 5(7. 1-5.6) X0. 9-1. 15 4-2. 55. 44-2

5、.6X (3. 7-2.9) +0. 6212X64- (12-7.2) -612X64-7. 2-60. 68X1.9+0. 32X1. 958+370) 4- (64-45)420+580-64X214-28136+6X (65-3454-23)15-10. 75X0. 4-5. 718. 1+ (3-0. 2994-0. 23) XI (6. 8-6. 8X0. 55)+8. 50. 12X 4.84-0. 12X4.8(3.2X1. 5+2. 5) 4-1.63.2X6+ (1.5+2. 5) 4-1.60. 68X1.9+0. 32X 1. 910. 15-10. 75X0. 4-5

6、. 75.8X (3. 87-0. 13) +4.2X3. 7432. 52- (6+9. 7284-3.2) X2. 5(7. 1-5.6) X0. 9-1. 15 +2.55. 4+2.6X (3. 7-2.9) +0.6212X64- (12-7.2) -612X64-7. 2-633. 02- (148.4-90. 85) +2.576. (25%-695%-12%)*3677./4*3/5+3/4*2/533.1- 1/4+8/9/7/979.+1/6/3/24+2/2180./15*3/581.3/4/9/10-1/682./3+l/2)/5/6-l/3/l/783./5+3/5/

7、2+3/484. (2-2/3/l/2)*2/585.+5268. 32-256986.3+456-52*887.5%+632588./2+1/3+1/489+456-785%+. 3/7 X 49/9 - 4/39 X 15/36 + 1/272X 5/6 - 2/9 X33* 5/4 + 1/4944- 3/8 - 3/8 4-695/7 X 5/9 + 3/7 X 5/96/2 - ( 3/2 + 4/5 )8 + ( 1/8 + 1/9 )8X5/6+ 5/61/4 X 8/9 - 1/310 X 5/49 + 3/141. 5 X ( 1/2 + 2/3 ) 2/9 X 4/5 +

8、8 X 11/53. 1 X 5/6 - 5/64/7 - ( 2/7 - 10/21 )19 X 18 - 14 X 2/75 X 25/16 + 2/3 X 3/44 X 8/7 - 5/6 X 12/157/32 - 3/4 X 9/242/3 +1/2 1/4 義 2/52 6/13 + 9/26 2/32/9 + 1/24-4/5 + 3/8104-5/9+1/6X41/2X2/5 + 9/104-9/205/9X3/10+2/74-2/51/2 +1/4 X 4/5-1/83/4 X 5/7 X 4/3-1/223-8/9X1/274-1/278X5/6 + 2/54-41/2 +

9、 3/4X5/12X4/58/9 又 3/4 3/8+ 3/45/8 + 5/4 + 3/23 + 9/111.2X2. 5+0. 8X2. 58.9X1.25-0.9X1.2512.5X7.4X0.89. 9X6. 4- (2.5+0.24)(27) 6. 5X9. 5+6. 5X0. 50. 35X1.6+0. 35X3. 40. 25X8.6X46. 72-3. 28-1. 720. 45+6. 37+4. 555. 4+6. 9X3- (25-2. 5)2X41846-620-3804.8X46+4.8X540. 8+0. 8X2. 51.25X3.6X8X2. 5-12.5X2.42

10、8X12. 5-12. 5X2023. 65- (3. 07+3. 65)(4+0.4X0.25) 8X7X1.251.65X99+1.6527. 85- (7. 85+3.4)48X1.25+50X1.25X0.2X87.8X9. 9+0. 78 (1010+309+4+681+6) X123X9146X782X6X8545. 15X7/8+6. 1-0. 606253/7 X 49/9 - 4/38/9 X 15/36 + 1/2712X 5/6 - 2/9 X38X 5/4 + 1/464- 3/8 - 3/8 4-64/7 X 5/9 + 3/7 X 5/95/2 - ( 3/2 +

11、4/5 )7/8 + ( 1/8 + 1/9 )9. 9 X 5/6 + 5/63/4 X 8/9 - 1/37 X 5/49 + 3/146 X ( 1/2 + 2/3 )38 X 4/5 + 831 X 5/6 -9/7 - ( 2/75/9 X 18 -4/5 X 25/1614 X 8/7 - 17/32 - 3/4X 11/55/6-10/21 )14 X 2/7+ 2/3 X 3/4 5/6 X 12/15 X 9/243X2/9+ 1/35/7 X 3/25 + 3/73/14 X 2/3 + 1/61/5 X 2/3 + 5/69/22 + 1/11 4- 1/25/3 X 1

12、1/5 + 4/345 X 2/3 + 1/3 X 157/19 + 12/19 X 5/61/4 + 3/4 4- 2/38/7 X 21/16 + 1/2101 X 1/5 - 1/5 X 2150 + 1604-40 (58+370) 4- (64-45) 120-1444-18+35347+45X2-4160 52(58+37) 4- (64-9X5)954- (64-45)178-1454-5X6+42 420+580-64X214-28812-7004- (9+31X11)(136+64) X (65-3454-23)85+14X (14+2084-26)(284+16) X (5

13、12-82084-18)120-36X44-18+35(58+37) + (64-9X5)(6. 8-6. 8X0. 55)+8. 50. 12X 4.84-0. 12X4.8(3. 2X1. 5+2.5) 4-1.6 (2) 3.2X (1. 5+2. 5) +1.66-1.64-45. 38+7. 85-5. 371. 24-0. 8-1. 2X56-1. 19X3-0. 4347. 6. 5X (4. 8-1. 2X4)0. 68X1.9+0. 32X 1. 948. 10. 15-10. 75X0. 4-5. 749. 5. 8X (3.87-0. 13) +4.2X3.7450. 3

14、2. 52- (6+9.728 + 3.2) X2. 551. (7. 1-5.6) X0. 9-1. 15 +2.552. 5. 44-2. 6X (3. 7-2. 9 ) +0.6253. 12X64- (12-7.2) -6 (4) 12X64-7. 2-6102 X (-4. 5)-(-3) X (-5) 4-27. 8X6. 9 + 2. 2X6. 9(-2)+2-(-52) X (-1) X 5+87 4-(-3) X (-1)5.6X0. 258X (20-1.25)(-7. 1) X (3)X(-5) 4-2-2. 5X (-4. 8) X (0. 09) 4- (-0. 27

15、) 127+352+73+44X (-2) 89X276+(-135)-33 25X71+754-29 -884- (-2) 243+89+111+57 9405-29404-28X21 920-16804-404-7 690+47X52-398 148+33284-64-75 360X24 + 32+730 2100-94+48X54 51+ (2304-2042) X23 4215+ (4361-716) 4-81 (247+18) X274-25 36-720+ (3604-18) 10804- (63-54) X80 (528+912) X5-617885284-41X38-90426

16、4+318-82804-69(174+209) X26- (90000) 814- (278+322) 4-15 1406+735X94-45 3168-78284-38+504796-50404- (6304-7) 285+ (3000-372) +361+5/6-19/123x(-9)+7x(-9)(-54)xl/6x(-1/3)1. 18. 1+ (3 0.299 + 0. 23) XI2. (6. 8-6. 8X0. 55)+8. 53. 0. 12X 4.84-0. 12X4.843.2X1. 5+2. 5+(-1. 6)(-2) X3.2X (1.5+2.5) 4-1.65. 6-

17、1. 64-4+(6. 8-9)6. 38+7. 85-5. 37 + 897. 7.24-0. 8-1. 2X56-1. 19X3-0. 438. 6. 5X (4. 8-1. 2X4)0. 68X1.9+0. 32X1. 99. 10. 15-10. 75X0.4-5. 710. 5. 8X (3. 87-0. 13)(-8. 01)+4. 2X3. 7411. 32. 52- (6+9. 7284-3.2) X2. 512. (7. 1-5.6 ) X0. 9-1. 15 4-2. 513. 5. 44-2. 6X (3. 7-2. 9 ) +0.6214. 12X64- (12-7.2

18、) -615. 12X64-7. 2-616. 33. 02- (148.4-90. 85) 4-2.5(-5)-252X (-78)(-6) X (-2)+34- (5+50)7-7+3-6- (-90)(-8) (-3) X (-8) X25(7+13) 4- (-616)(-28)(8+14-100-27) 4-4(_15) 4- (-1)-1014-10164-0. 21X (-8) X (4. 1+5. 9)(-10) X (-2) X44-94-6+(-5. 67)(-18) (-4)2X 8.01X (-3. 14)9-32 -890-79+8. 1 X9(-20)-23+(-9

19、) X9. 42(-24)3.4X1044-(-5) X200. 96-|98|+76+(-87)*2356+(-75)-(7)-(8+4+3)5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-564. 6- (-3/4+1. 6-4-3/4)1/2+3+5/6-7/122/3-4-1/4*(-0. 4)/1/3+222+(-4) + (-2)+4*3-2*8-8*l/2+8/l/8(2/3+1/2)/(-1/12)*(-12)(-28) / (-6+4) + (-1) +J92/ (-2) +0/7- (-8) * (-2) (1/4-5/6+1/3+2/3)/1/2

20、18-6/(-3)* (-2) X2-7(5+3/8*8/30/(-2)- J 36(-84)/2* (-3)/(-6)1/2* (-4/15)/2/31+2+3+4+1000001/1+1/2+1/3+1/501+1/2+1/4+1/8+1/16+1/5123+9+27+81+243+ 99991+1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/908 2X32 (-2X3)2-12 X (-3)2-(-1/2) 2003X (-2)20024-2/9 (0. 5-3/2) 4-3/1X -2-(-3) 3 - I 1/8-0. 52 | -38-(-1)7+

21、(-3) 8 X-53a八3-2b- 3+ab(2a-b)- J a-b- 215*(-8)+2b-2+心-2+/2>2-4丫&-2+/2)+4/26-3a8-(-52-6)(x'2+2x)-2+3(x-2+2x)+x-2+2x+3(a+1) (a+2) + (2a+l) (a_2)-12x*2(y+z)*2-2xy(x-z)(y+z)+y*2(x-z)"23(a+2)-2+28(a+2)-20(a+b)"2-(b-c) 2+a2-c28x(x+l) (x-2+xT) -2x'2(x-l廠2-3(x-2-x)-5614a(a-b)+(a-b)&

22、quot;211. -ab (a-b)八 +a (b-a)- 212. 3 (x+2) 2x=54x13. 5 (x+2a) -a=2 (b-2x) +4a3. 14*3. 42 (2)972*3. 14*1/4-1981 +76+ (-87) *23 56+ (-75)-(7)-(8+4+3)5+21*8/2-7121-5968/21-8-11*8+61-2/9-7/9-564. 6- (-3/4+1. 6-4-3/4)1/2+3+5/6-7/122/3-4-l/4*(-0. 4)/l/3+222+(-4) + (-2)+4*3-2*8-8*l/2+8/l/8 (2/3+l/2)/(-l/1

23、2)*(-12)(-28)/ (-6+4) + (-l)2/(-2)+0/7-(-8)*(|-2 |-5-4) (l/3+2/3)/l/2-|-9+(-5)|18-6/(-3)*(-2)-|-9 (5+3/8*8/30/(-2)-3(-84)/2* (-3)/(-6)1/2* (-4/15)/2/3I-3x+2y-5x-7y|-|-9x+2y-5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-565. 6- (-3/4+1. 6-4-3/4)1/2+3+5/6-7/122/3-4-1/4*(-0. 4)/1/3+222+(-4) + (-2)+4*3- V64-5- 2

24、-2*8-8*l/2+8/l/8 (2/3+1/2)/(-1/12)*(-12)(-28)/(-6+4) + (-1)2/ (-2) +0/7- (-8) * (-2)(1/4-5/6+1/3+2/3)/1/218-6/(-3)*(-2) (5+3/8*8/30/(-2)-3(-84)/2* (-3) / (-6)1/2*(-4/15)/2/3+ J9-3x+2y-5x-7y+-5+21*8/2-6-5968/21-8-11*8+61-2/9-7/9-566. 6- (-3/4+1. 6-4-3/4)2/3-4-l/4*(-0. 4)/l/3+222+(-4) + (-2)+4*3-2*8-8

25、*l/2+8/l/8 (2/3+l/2)/(-l/12)*(-12)(-28)/ (-6+4) + (-l)2/(2)+0/7(-8)*(2) (l/4-5/6+l/3+2/3)/l/218-6/(-3)* (-2)(5+3/8*8/30/(-2)-3(-84)/2* (-3)/(-6)1/2* (-4/15)/2/3- 3x+2y-5x-7y-(-3 -2+5 -7)- 1+2-3+4-5+6-7+ V 9-50-28+(-24)-(-22)- 19. 8-(-20. 3)-(+20. 2)-10. 8;0. 25- + (-1 ) - (+3 ).-1-23. 33-(+76. 76)1-

26、2*2*2*2-5-2+(6-2-5-2) (-6-24. 3)-(-12+9. l) + (0-2. 1)-l+8-7+57-(-5+V9)125*3+125*5+25*3+259999*3+101*11*(101-92)(23/4-3/4)*(3*6+2)3/7 X 49/9 - 4/338/9 X 15/36 + 1/27 12x*5/6y - 2/9y*|3x-2y| 8*5/4+1/4*|-7-81 6+ 3/8 - 3/8 +6 4/7 X 5/9 + 3/7 X 5/9 5/2 一 ( 3/2 + 4/5 ) 7/8 + ( 1/8 + 1/9 ) 9X5/6+ 5/6 3/4

27、X 8/9 1/3 7 X 5/49 + 3/14 6 X ( 1/2 + 2/3 )38 X 4/5 + 831 X 5/6 -9/7 - ( 2/75/9 X 18 -4/5 X 25/1614 X 8/7 - 17/32 - 3/4X 11/55/6-10/21 )14 X 2/7+ 2/3 X 3/4 5/6 X 12/15 X 9/243-45 X 2/9 + 1/3 5/7 X 3/25 + 3/73/14 X2/3 + 1/61/5 X 2/3 + 5/65/3 X 11/5 + 4/39/22+1/11 + 1/2-J 16945'8 X 2/3 + 1/3 X 157

28、/19 + 12/19 X 5/61/4 + 3/4 4- 2/38/7 X 21/16 + 1/210P4X (-1/5 - 1/5X21)50+ 5160+4(/5120-1444-18+35347+45X2-41604-5237-2 (58+37) + (64-9X5)954- (64-45)178-1454-5X6+42812-7004- (9+31X11)85+14X (14+2084-26)120-36X44-18+35(58+37) 4- (64-9X5)(6. 8-6. 8X0. 55)4-8.50. 12X 4.84-0. 12X4.8(3.2X1. 5+2. 5) 4-1.

29、66-1.64-4= 5. 38+7. 85-5. 37=7. 2-0. 8-1. 2X5= 6-1. 19X3-0. 43=6. 5X (4. 8-1. 2X4)=5. 8X (3. 87-0. 13) +4.2X3. 7432. 52- (6+9. 7284-3.2) X2. 5(7. 1-5.6) X0. 9-1. 15 4-2. 55. 44-2.6X (3. 7-2.9) +0. 6212X64- (12-7.2) -612X64-7. 2-60. 68X1.9+0. 32X1. 958+370) 4- (64-45)420+580-64X214-28136+6X (65-3454-

30、23)15-10. 75X0. 4-5. 718. 1+ (3 0.299 + 0. 23) XI(6. 8-6. 8X0. 55)+8. 50. 12X 4.84-0. 12X4.8(3.2X1. 5+2. 5) 4-1.63.2X6+ (1.5+2. 5) 4-1.60. 68X1.9+0. 32X 1. 910. 15-10. 75X0. 4-5. 75.8X (3. 87-0. 13) +4.2X3. 7432. 52- (6+9. 7284-3.2) X2. 5(7. 1-5.6) X0. 9-1. 15 +2.55. 4+2.6X (3. 7-2.9) +0.6212X64- (1

31、2-7.2) -612X64-7. 2-633. 02- (148.4-90. 85) +2.576. (25%-695%-12%)*367/4*3/5+3/4*2/51-1/4+8/9/7/97+1/6/3/24+2/218/15*3/53/4/9/10-1/68/3+1/2)/5/6-1/3/1/79/5+3/5/24-3/48c6(2-2/3/1/2)*2/58+5268. 32-25693+456-52*887.5%+63258/2+1/3+1/489+456-785%+. 3/7 X 49/9 - 4/39 X 15/36 + 1/272X 5/6 - 2/9 X33* 5/4 +

32、1/4944- 3/8 - 3/8 4-695/7 X 5/9 + 3/7 X 5/96/2 - ( 3/2 + 4/5 )8 + ( 1/8 + 1/9 )8X5/6+ 5/61/4 X 8/9 - 1/310X 5/49 + 3/141. 5 X ( 1/2 + 2/3 )32/9 X 4/5 + 8 X 11/53. 1 X 5/6 - 5/64/7 - ( 2/7 - 10/21 )19 X 18 - 14 X 2/75 X 25/16 + 2/3 X 3/44 X 8/7 - 5/6 X 12/157/32 - 3/4 X 9/242/3 +1/2 1/4 義 2/52 6/13 +

33、 9/26 2/32/9 + 1/24-4/5 + 3/8104-5/9+1/6X41/2X2/5 + 9/104-9/205/9X3/10+2/74-2/51/2 +1/4 X 4/5-1/83/4 X 5/7 X 4/3-1/223-8/9X1/274-1/2718X5/6+2/54-411/2 + 3/4X5/12X4/58/9 又 3/4 3/8+ 3/45/8 + 5/4 + 3/23 + 9/111.2X2. 5+0. 8X2. 58.9X1.25-0.9X1.2512.5X7.4X0.89. 9X6. 4- (2.5+0.24)36. 5X9. 5+6. 5X0. 50. 35X

34、1.6+0. 35X3. 40. 25X8.6X46. 72-3. 28-1. 720. 45+6. 37+4. 555. 4+6. 9X3- (25-2. 5)2X41846-620-3804.8X46+4.8X540. 8+0. 8X2. 51.25X3.6X8X2. 5-12.5X2.428X12. 5-12. 5X2023. 65- (3. 07+3. 65)(4+0.4X0.25) 8X7X1.251.65X99+1.6527. 85- (7. 85+3.4)48X1.25+50X1.25X0.2X87.8X9. 9+0. 78 (1010+309+4+681+6) X123X914

35、6X782X6X8545. 15X7/8+6. 1-0. 606253/7 X 49/9 - 4/38/9 X 15/36 + 1/2712X 5/6 - 2/9 X38X 5/4 + 1/4364- 3/8 - 3/8 4-64/7 X 5/9 + 3/7 X 5/95/2 - ( 3/2 + 4/5 )7/8 + ( 1/8 + 1/9 ) 9X5/6+ 5/63/4 X 8/9 - 1/37 X 5/49 + 3/146 X ( 1/2 + 2/3 )8 X 4/5 + 8 X 11/531 X 5/6 - 5/69/7 - ( 2/7 - 10/21 )5/9 X 18 - 14 X

36、2/74/5 X 25/16 + 2/3 X 3/4 14 X 8/7 - 5/6 X 12/15 17/32 - 3/4 X 9/24 3X2/9+ 1/35/7 X 3/25 + 3/73/14 X 2/3 + 1/61/5 X 2/3 + 5/69/22 + 1/11 4- 1/25/3 X 11/5 + 4/345 X 2/3 + 1/3 X 157/19 + 12/19 X 5/61/4 + 3/4 4- 2/38/7 X 21/16 + 1/2101 X 1/5 - 1/5 X 2150 + 1604-40 (58+370) 4- (64-45)120-1444-18+35347+

37、45X2-4160 52(58+37) 4- (64-9X5)954- (64-45)178-1454-5X6+42 420+580-64X21 28812-7004- (9+31X11)(136+64) X (65-3454-23)85+14X (14+2084-26)(284+16) X (512-820818)120-36X4+18+35(58+37) 4- (64-9X5)(6. 8-6. 8X0. 55)4-8.50. 12X 4.84-0. 12X4.8(3. 2X1. 5+2. 5) 4-1.63. 2X (1.5+2. 5) 4-1.66-1.64-4= 5. 38+7. 85

38、-5. 37=7. 2-0. 8-1. 2X5= 6-1. 19X3-0. 43=6. 5X (4. 8-1. 2X4) = 0. 68X1.9+0. 32X1.910. 15-10. 75X0. 4-5. 75. 8X (3. 87-0. 13) +4.2X3. 7432. 52- (6+9. 7284-3.2) X2. 5(7. 1-5.6) XO. 9-1. 15+2.55. 4+ 2.6 X (3. 7-2.9) +0. 6212X64- (12-7.2) -6 (4) 12X64-7. 2-6102A2X4. 5+8號 J5297.8X6. 9 + 2.2X6.95.6X0. 258

39、X (20-1.25)127+352+73+4489+276+135+3325+71+75+29 +88243+89+111+579405-29404-28X21920-16804-404-7690+47X52-398148+33284-64-75360X24 32+7302100-94+48X5451+ (2304-2042) X234215+ (4361-716) 4-81(247+18) X274-2536-7204- (3604-18)10804- (63-54) X80(528+912) X5-61788528 41X38-904264+318-82804-69(174+209) X

40、26- 9000814- (278+322) 4-151406+735X94-453168-78284-38+504796-50404- (6304-7)285+ (3000-372) 4-361+5/6-19/123x(-9)+7x(-9(-54)xl/6x(-1/3)18. 1+ (3-0. 2994-0. 23) XI(6. 8-6. 8X0. 55)4-8.50. 12X 4.84-0. 12X4.8(3.2X1. 5+2. 5) 4-1.63. 2X (1.5+2. 5) 4-1.65. 6-1.64-46. 38+7. 85-5. 377.2 + 0. 8-1. 2X56-1. 1

41、9X3-0. 437. 5X (4. 8-1. 2X4)0. 68X1.9+0. 32X1. 9115-10. 75X0. 4-5. 75. 8X (3. 87-0. 13) +4.2X3. 7432. 52- (6+9. 7284-3.2) X2. 5(7. 1-5.6) XO. 9-1. 15+2.55. 4+ 2.6 X (3. 7-2.9) +0. 6212X64- (12-7.2) -612X64-7. 2-633. 02- (148.4-90. 85) +2.5二.解方程2x=7(x-5)8 (3x+3)=2404. 74+4x-2. 5x=8. 1(2. 81+x)4-2. 81

42、=115x-30=16(x-2)(-3廠3-3-3(-1廠2-5. 62c2+3-3-4Y(2-4一3-2尸3-5-5(1.6-2-2-3) - 2. 1/2(5. 66X2)2-152(-15)x=225, x=?(-4)-2-4-2X2-2(-5. 6)- 2+325. 6-2+(-5. 6)-2X (-1)23x+28-x=561 . 5x+6=3. 752 (3. 6x+2. 8)=-l. 639. 5x+9. 5=19 18(x-35)=-36x+7-(-36+8-2)/2=8+7 - 4/3a-7-98+7a=3. 2*5a89/2+35/6x=3*9+2 -3/5+7x3X+18

43、9/3=521/24Y+n9*"3=22/n3X*189=5*4-5/38Z/6=458/53X+77=594Y-6985=8187X*13=57Z/93=4115X+863-65X=5458Y*55=274897 (2x-l)-3 (4x-l)=4 (3x+2)-l (5y+l)+ (l-y)= (9y+l)+ (l-3y) -6 (-7-4*8)-4=x+220%+(1-20%) (320-x) =320X40%2 (x-2)+2=x+l2(x-2)-3 (4x-l)=9(l-x)1lx+64-2x=100-9x15-(8-5x)=7x+(4-3x)3(x-7)-29-4(2-x)=223/22/3(l/4x-l)-2-x=22x+7/2=