初二数学二元一次方程组专项练习题 36.docx

1、初二数学二元一次方程组专项练习题 36 4a2b5 8x4y10 8a8b14 5x9y1 9x4y 109 m7b2 7y9x 109 -10m3b9 7a5b4 x8y-1 5a5b15 8x8y6 3x9y 74 0.8x0.9y0.7 9y2x 74 0.8x0.5y1.4 6a7b13 8x2y8 4a4b19 2x y17 8x5y 53 7m4b4 7y3x 53 -5m2b22 6a8b7 6x4y-3 6a9b15 7x5y7 9x4y 179 0.2x0.1y3 2y2x 179 0.8x0.7y3.5 2a5b1 6x6y1 7a9b16 2x6y11 3x2y 51 6

2、m2b13 8y7x 51 -9m4b19 a8b4 9x3y-8 4a b3 9x7y-2 9x8y 13 0.3x0.3y1.9 6y6x 13 0.5x0.1y0.6 4a2b18 6x7y11 7a2b5 8x6y13 8x3y 88 2m4b15 5y x 88 -1m b27 6a b7 6x9y-3 6a2b18 2x9y-7 6x3y 138 0.3x0.1y3.2 2y5x 138 0.2x0.5y3.4 7a5b10 7x7y1 a b9 7x6y18 8x6y 40 3m7b7 9y3x 40 -3m7b10 6a b8 x5y-8 4a9b19 5x9y-4 6x9y

3、178 0.9x0.2y0.3 9y3x 178 0.9x0.3y2.6 3a b1 2x7y2 7a8b4 9x7y20 7x y 136 9m2b19 6y5x 136 -5m b26 8a2b12 5x7y0 a4b3 x7y2 6x3y -6 0.9x0.3y0.5 2y x -6 0.5x0.5y1.3 3a2b10 6x4y17 2a2b8 6x5y11 3x6y 32 9m4b19 y4x 32 -9m7b12 2a3b2 7x2y2 5a7b2 7x3y6 2x y 182 0.3x0.3y2.6 3y9x 182 0.5x0.1y0.9 6a8b1 x7y10 6a b18 5x7y1 6x9y 56 8m8b14 3y6x 56 -2m3b16 8a5b11 5x y-4 4a4b12 7x5y3 2x6y 7 0.1x0.3y1.6 6y5x 7 0.8x0.7y2.1 5a9b19 x6y13 3a5b17 9x5y10 3x6y 137 2m3b2 y5x 137 -4m6b8 a5b13 4x y9 6a3b5 8x3y-6 3x2y 126 0.8x0.6y0.7 4y3x 126 0.5x0.9y1.3