初二数学二元一次方程组专项练习题 93.docx

1、初二数学二元一次方程组专项练习题初二数学二元一次方程组专项练习题 93 9a b6 2x9y18 3a6b1 5x8y19 7x8y 56 9m4b9 4y5x 56 -4m4b1 8a5b5 5x y0 9a4b19 5x8y6 2x5y 141 0.9x0.4y3.3 y3x 141 0.1x0.9y1.6 9a9b7 3x7y2 a7b13 7x8y4 7x6y 137 7m7b24 y4x 137 -2m7b22 8a6b5 2x7y-8 6a8b10 3x7y-7 4x2y-10 0.3x0.1y3.4 9y3x-10 0.9x0.7y2 4a9b2 8x8y17 6a7b20 8x

2、5y5 9x7y 32 5m5b17 6y7x 32 -10m4b24 4a b10 3x9y10 a3b18 6x7y-9 9x7y 68 0.7x0.7y2.8 6y4x 68 0.5x0.5y2.1 2a4b16 7x y1 5a b10 5x7y18 5x9y 131 8m9b30 y5x 131 -1m2b8 2a6b10 x6y2 9a4b17 8x7y-4 6x8y-10 0.1x0.8y1.5 3y9x-10 0.2x0.9y2 6a8b16 9x2y4 2a2b18 5x3y20 8x2y 94 2m5b15 4y5x 94 -9m7b18 8a8b14 8x8y10 5a8

3、b4 4x7y3 5x9y 111 0.7x0.7y1.5 y8x 111 0.1x0.7y2.7 3a6b5 9x3y10 5a6b4 8x2y13 6x9y 24 3m2b2 8y7x 24 -7m b14 8a3b14 7x3y10 8a2b9 3x6y-9 7x9y 171 0.8x0.4y2.9 9y6x 171 0.6x0.2y1.9 4a6b18 2x6y3 4a6b17 5x5y3 5x7y 102 7m9b6 4y4x 102 -1m6b17 9a4b8 4x7y-8 4a b2 9x9y5 x3y 27 0.6x0.1y3 2y7x 27 0.2x0.2y3.4 5a2b6 7x2y5 3a9b4 5x5y7 4x9y 102 4m b11 8y6x 102 -9m b22 3a3b13 6x3y2 3a8b14 6x4y-2 x y 175 0.6x0.2y3.1 2y5x 175 0.4x0.3y4 8a b9 4x4y2 9a b7 7x4y14 7x2y 200 3m3b28 5y8x 200 -4m6b6 4a2b6 6x8y2 8a b1 9x7y2 x3y 110 0.7x0.7y0.4 4y4x 110 0.5x0.7y4