二元一次方程组专项练习题24.docx

1、二元一次方程组专项练习题24 a b17 3x6y1 2a9b14 2x8y9 2x2y 178 3m b15 2y3x 178 -1m2b6 9a7b1 4x7y6 7a5b6 7x y-8 6x9y 39 0.3x0.2y1.5 3y7x 39 0.2x0.8y3.7 7a6b14 2x3y11 8a7b9 9x3y11 7x9y 117 6m9b26 9y9x 117 -7m9b14 5a8b4 7x8y-9 2a6b19 4x8y10 9x y 113 0.1x0.5y0.8 6y7x 113 0.7x0.9y1.1 4a7b13 6x8y18 a8b20 9x3y15 5x8y 22

2、 3m9b17 7y8x 22 -8m5b3 2a6b12 7x4y-6 a6b3 6x7y2 6x9y 134 0.9x0.6y0.6 2y6x 134 0.5x0.9y0.9 a7b17 6x7y4 5a5b19 3x8y3 5x y 53 5m3b8 4y3x 53 -9m b12 6a6b17 6x5y5 a4b15 2x5y4 2x3y 149 0.6x0.2y1.3 9y2x 149 0.1x0.5y4 4a8b20 7x7y15 6a8b16 3x3y8 7x5y 2 4m3b16 8y3x 2 -10m2b4 5a b13 8x8y-6 4a3b1 7x8y-2 8x9y 13

3、5 0.8x0.8y2.5 8y x 135 0.3x0.4y0.2 a8b20 4x7y19 2a9b3 8x8y18 9x4y 68 5m3b13 y3x 68 -3m b13 6a7b6 7x8y6 a8b8 7x2y-4 3x3y 46 0.5x0.4y2.5 6y9x 46 0.7x0.4y0.6 6a6b20 6x y2 8a b8 9x y11 8x4y 106 m7b22 6y8x 106 -5m7b14 6a2b2 5x y8 4a5b7 x4y-3 2x6y 103 0.1x0.8y3.1 6y7x 103 0.4x0.2y2.1 a8b16 8x9y18 3a6b11 8

4、x3y17 x9y 59 2m5b9 5y x 59 -4m4b5 8a9b14 2x5y8 2a3b6 x5y0 7x8y 200 0.3x0.8y1.4 y6x 200 0.6x0.6y2.5 2a6b2 4x8y12 2a2b4 2x7y19 4x4y 166 8m7b10 7y7x 166 -10m5b6 7a5b6 7x3y-9 7a3b14 6x7y-6 9x3y 32 0.8x0.9y1.6 4y8x 32 0.1x0.8y0.2 8a9b12 7x6y4 a4b17 3x3y10 x3y 82 5m9b2 5y2x 82 -8m8b28 8a9b3 4x8y-6 2a5b11

5、7x9y2 6x4y 139 0.9x0.3y1.2 2y7x 139 0.6x0.6y2.5 2a9b11 x3y1 6a8b6 2x9y13 x y 63 7m6b2 3y6x 63 -3m2b30 7a7b1 3x8y-7 5a4b10 5x6y-6 3x y 38 0.1x0.8y3.7 6y2x 38 0.9x0.6y2.2 6a5b11 2x9y7 2a3b4 5x9y17 x5y 120 6m9b9 5y7x 120 -8m8b9 2a9b16 8x9y-5 3a7b20 8x4y5 9x y 35 0.9x0.4y0.1 5y9x 35 0.3x0.4y1.7 2a9b2 x3

6、y4 3a b14 8x3y16 x2y 82 5m6b5 8y x 82 -4m6b23 7a9b16 2x y6 2a6b14 9x2y10 x4y 2 0.5x0.2y0.5 5y3x 2 0.8x0.7y1.4 9a8b10 7x8y7 a4b19 4x y16 7x8y 64 8m8b17 6y4x 64 -2m9b1 5a b7 6x y-7 6a5b7 7x3y-3 3x y 0 0.9x0.1y2.7 4y8x 0 0.2x0.1y2.4 8a b11 7x y13 7a4b1 7x4y7 4x4y 34 m2b9 5y2x 34 -3m4b4 2a3b10 7x2y6 9a8b6 8x y-9 6x6y 183 0.4x0.4y0.6 9y3x 183 0.9x0.4y0.5