北师大版八年级数学下册解二元一次方程组练习题精选 66.docx

1、北师大版八年级数学下册解二元一次方程组练习题精选 66 a2b10 8x6y5 5a7b9 2x7y15 x6y 108 m5b14 6y8x 108 -10m6b3 a4b4 x3y-5 6a7b18 4x9y9 6x3y 127 0.1x0.9y1 4y6x 127 0.7x0.6y0.9 5a8b12 6x5y19 5a2b3 7x9y11 6x y 159 3m2b27 4y5x 159 -9m5b24 3a6b7 7x2y8 8a5b7 3x9y2 3x9y 183 0.2x0.2y3.3 9y6x 183 0.8x0.3y1.5 9a2b6 3x2y14 8a b7 4x3y3 4

2、x4y 50 2m7b26 8y9x 50 -4m b25 6a8b3 6x y0 4a3b18 3x9y5 7x5y 39 0.7x0.3y3.8 2y6x 39 0.1x0.1y0.7 9a9b1 x6y2 9a2b11 4x4y8 4x6y 134 8m2b15 4y5x 134 -1m6b29 5a2b11 8x y-5 2a5b16 6x2y-4 2x7y 165 0.2x0.8y0.1 8y6x 165 0.4x0.8y0.4 5a2b18 x7y19 7a2b16 2x2y10 9x5y 29 5m7b6 9y8x 29 -5m2b11 7a7b12 4x y-9 6a8b11

3、2x6y-1 2x8y 109 0.4x0.8y2.6 y9x 109 0.7x0.5y0.6 6a7b2 7x9y3 a4b18 x8y17 8x7y -3 6m4b21 6y5x -3 -6m2b13 8a b16 2x2y4 7a7b7 8x2y5 6x8y 124 0.4x0.3y4 3y6x 124 0.5x0.6y2.7 a3b20 x6y6 6a4b5 8x7y10 x y 103 7m8b26 3y6x 103 -6m3b11 a6b20 6x y-7 4a6b4 8x7y-8 6x7y 84 0.2x0.8y0.4 4y7x 84 0.8x0.9y3.7 a6b3 8x9y13 4a3b8 9x9y7 8x4y 176 8m9b9 3y6x 176 -2m b4 2a2b2 6x9y-8 2a6b12 8x4y7 2x5y -7 0.1x0.5y0.6 3y6x -7 0.9x0.5y1.6 7a8b6 2x5y16 7a9b6 5x y1 3x3y 200 7m9b16 6y6x 200 -9m b18 9a9b13 6x8y-6 9a b18 6x6y6 5x8y 110 0.4x0.1y0.3 4y7x 110 0.8x0.6y3.3