初二数学二元一次方程组专项练习题 92.docx

1、初二数学二元一次方程组专项练习题 92 8a5b11 2x6y17 2a2b15 2x9y19 2x8y 146 6m6b27 7y6x 146 -6m4b7 7a4b20 x9y0 4a2b1 x6y-2 3x2y 81 0.6x0.3y3.3 4y9x 81 0.6x0.5y2.7 4a7b5 7x y17 6a4b3 6x8y2 2x y 111 8m4b6 3y6x 111 -5m7b29 9a6b7 2x8y-1 8a7b2 6x2y4 9x3y 118 0.9x0.7y3.5 4y2x 118 0.8x0.3y3.3 9a9b7 8x5y18 7a6b7 4x y4 9x8y 14

2、3 7m6b0 y7x 143 -2m3b0 3a2b14 3x9y-4 3a9b10 2x9y5 6x3y 146 0.1x0.1y1 8y9x 146 0.8x0.6y1.7 6a3b11 8x9y9 9a2b13 3x9y19 6x3y 13 6m3b5 4y5x 13 -5m2b26 2a7b19 5x8y-1 3a b1 5x5y7 7x9y 158 0.4x0.5y0.6 3y7x 158 0.6x0.6y0.8 2a3b9 2x6y13 9a8b18 6x8y12 4x7y 24 m b26 7y6x 24 -8m8b13 2a b15 7x8y9 5a5b20 x8y-10 2

3、x8y 166 0.3x0.1y3.2 6y8x 166 0.1x0.4y3.1 8a6b13 4x4y7 4a2b19 6x7y7 5x6y 7 m2b23 9y5x 7 -3m3b12 a2b17 8x7y-8 5a8b2 8x8y5 9x6y 197 0.9x0.8y1.3 9y3x 197 0.9x0.2y1.3 5a3b18 5x5y19 7a4b1 7x4y14 6x3y 54 5m4b22 7y8x 54 -2m2b19 7a7b14 6x7y2 2a9b7 x2y-2 9x5y 140 0.4x0.5y3.7 8y8x 140 0.8x0.4y1.2 2a2b4 4x6y5 8a6b1 8x2y15 8x4y 31 2m7b13 9y3x 31 -5m7b9 4a2b15 x2y-7 5a4b11 4x7y0 9x7y 55 0.2x0.2y2.3 2y6x 55 0.9x0.2y1.6 7a6b4 x6y7 8a2b10 7x6y20 x y 154 8m7b19 8y6x 154 -3m2b8 a b18 9x9y-7 a3b18 x9y-2 8x8y 126 0.1x0.1y2.1 5y5x 126 0.6x0.9y3.7