1、二元一次方程组专项练习题109 5a6b12 3x4y12 6a7b10 9x6y19 3x4y 198 2m7b26 9y5x 198 -5m b23 8a3b15 7x4y0 8a b3 7x6y-9 7x8y 16 0.1x0.2y1.7 9y2x 16 0.9x0.4y0.6 7a3b6 4x y10 9a3b2 7x7y2 6x5y 177 6m3b8 3y x 177 -9m8b5 4a5b8 8x6y-10 5a3b3 6x5y-5 3x6y 28 0.2x0.6y2 4y4x 28 0.9x0.6y2 4a8b11 6x9y20 9a5b13 x4y13 6x4y 106 3m
2、 b24 2y2x 106 -2m8b24 8a6b10 9x y-7 a6b3 3x3y-10 8x6y 73 0.5x0.3y0.4 4y x 73 0.1x0.9y3.5 3a4b8 3x2y10 5a9b2 3x4y1 7x8y 98 9m4b15 4y9x 98 -10m5b17 3a3b4 4x y-1 6a b17 9x8y-9 3x7y 124 0.3x0.8y0.1 5y8x 124 0.4x0.3y0.9 2a4b16 8x9y18 a b16 9x2y4 4x5y 140 2m2b3 3y9x 140 -9m2b27 a4b1 3x3y5 8a9b2 4x9y5 2x y
3、 100 0.1x0.7y1.1 4y3x 100 0.2x0.7y2.2 9a3b5 2x y8 7a7b14 5x7y12 3x y 47 3m9b4 6y x 47 -9m9b30 5a7b9 6x5y-10 3a4b20 2x9y9 4x2y 139 0.2x0.8y1 4y3x 139 0.7x0.5y2.6 7a3b14 7x9y8 3a b8 5x5y15 9x9y 172 9m9b10 y2x 172 -6m9b29 5a7b9 2x9y-4 2a9b19 x y-5 2x8y 34 0.6x0.6y3.4 5y x 34 0.9x0.6y2.4 3a2b8 5x3y20 7a
4、9b13 8x y3 3x4y 22 2m8b21 9y4x 22 -8m6b16 a2b9 8x9y6 a5b20 3x8y9 2x3y 146 0.1x0.6y2.1 4y8x 146 0.6x0.7y4 9a4b14 3x5y20 5a3b5 6x6y12 7x6y 85 3m8b23 7y8x 85 -8m9b14 9a6b9 4x3y-1 8a2b20 x6y1 7x8y 170 0.9x0.7y3.7 4y5x 170 0.2x0.1y0.3 6a7b3 x7y19 a5b15 6x8y9 x5y 173 8m4b18 4y9x 173 -7m8b3 5a4b2 6x2y3 5a3
5、b11 x2y-8 9x9y 3 0.6x0.8y3.2 8y6x 3 0.6x0.5y2.5 5a8b8 x5y15 2a2b9 4x8y10 2x9y -2 3m6b28 6y9x -2 -1m b24 7a2b17 6x y-6 2a9b6 9x9y-4 2x8y 146 0.7x0.3y3 7y4x 146 0.1x0.8y3.3 4a8b20 4x8y16 9a7b16 2x7y13 3x8y 172 3m4b20 3y x 172 -3m5b30 8a7b13 6x9y8 6a7b14 x4y-7 5x3y 136 0.1x0.3y1.2 9y4x 136 0.7x0.5y0.7
6、2a4b17 8x2y1 a5b13 8x4y12 6x4y 197 5m3b0 5y3x 197 -3m2b23 6a5b7 4x8y-6 a9b19 4x9y8 2x9y 6 0.1x0.5y2.8 8y2x 6 0.2x0.6y1.3 5a2b19 7x2y5 3a2b10 8x8y3 4x5y 22 3m9b29 2y x 22 -8m9b3 3a4b10 4x3y-3 4a9b14 4x7y-1 x3y 22 0.3x0.1y1.2 2y3x 22 0.9x0.9y1.9 5a3b7 8x3y3 7a3b8 4x2y5 9x5y 8 7m3b29 8y6x 8 -9m b26 a6b6 2x8y-3 6a4b20 9x5y4 9x y 168 0.9x0.8y2 5y6x 168 0.1x0.6y2.3
