解二元一次方程組計(jì)算題

1、解二元一次方程組計(jì)算題1. 3x+y=342x+9y=814. 9x+4y=358x+3y=305.卜+3尸12 .2x - 3y=G . 6.j x-2y=4®7. 7x+2y=527x+4y=62. 8.卜+2尸113k - 2y=11 9./置 13"5尸1410.4x+6y=549x+2y=8711.fx=y+l 2x+y=812. 2:t+y8 1/ - y=l13.2x+y=72x+5y=1914.1£ - y=8 3x+y=L2,15 JVH尸5 改一尸116. x+2y=213x+5y=5617.L*+3廠118:-加8I*4%一尸119.15x+

2、7y=5215x+2y=2220. 14x- 3y=ll 2x+y=1321.| u+3 尸 g 初-3y=42215x+5y=657x+7y=20323. J3x+2y=19242 工-y=l25.J8x+4y=561x+4y=2126.，| 2k - y=3 +干7 27.+2y=l*-2尸口28.5x+7y=4155x+8y=4429.M 工+2y=6.30.3工+5y=8a -產(chǎn)131.x+5y=543;+4y=3832.a - § 尸-& 3x+2y=12,33.A-3y - 5 13尸8 - 2%1+l=y 2 (x+1) -y=6 (2)34. 4X+y=293

3、5x+8y=1537.：!x+6y=249x+5y=4638.k+v=93 (x+y) +2x=3339 卜+產(chǎn)3,5m- 3=140 4)卜+2y=62 13y=3641.& _ yH2$ t .42.L3x+Zy=10_X±1 n三心2 Ck+1) -y=ll15.9x+4y=467Ly=4244.2 （2工+了） -45._ j4y_ _34 - 123 (s+y) - 2 (2k- y) =3卜一尸3|_2y+3 36 3 36 =H 3646. 9x+7y=1353x+8y=51,4x+7y=95x+6y=2747. 4x+y=41 4f.9x+3y=9949. 9

4、x+2y=382x+3y=73x-2y=750.，51.3x+6y=183x+y=72x-3y=355.8x+2y=169x-3y=17x+y=1168. 2x+y=63x-5y=269. 2x-y=352. fx+5y=45 '3x+3y=2755. 7x+4y=67 x+2y=458. 5x+4y=527x+6y=7461. 7x+y=9 4x+6y=1653.8x+2y=2847x+9y=695x+3y=8j56. 3x+5y=84x-3y=18 59.2x-y=8 I62. 3x-2y=5x+6y=14 54.7x+8y=6257. 6x-7y=52x+8y=2660. x-2

5、y=5 x+3y=-563. 3x-5y=264. 6x+6y=486x+3y=427x-4y=112x-y=3y-3x=265. x-2y=666. 10x-8y=14 x+y=570. 4x+9y=771 8x+6y=9471. fx+7y=3 x+y=072. 3x+y=10 7x-y=2073. 44x+10y=27x+y=174. 8x-y=0x+y=1875. J1x-y=121 11y-x=-1276. 5x+6y=27'2x+3y=12 卜77. 7x-2y=4*+2y=1278. (2x+y)-5y=2 l2x-5y=079. 1x-3y=33x+2y=2180. yx+2y=21y-6x=181. 110x-8y=03x-2y=282. 爭+y=10 ' 5x-7y=883. 3x-2y=1 lx-y=347. f x+3y=-53x-4y=-249. 2x+3y=73k+2y=350. I 3x+2y=18