二元一次方程组专项练习题114.docx

1、二元一次方程组专项练习题114 6a4b2 3x7y3 a7b5 x5y19 4x7y 73 3m3b7 7y7x 73 -9m6b9 2a5b18 9x9y-1 9a5b17 9x3y-4 7x y 62 0.2x0.4y0.3 6y9x 62 0.3x0.3y0.1 5a5b18 3x3y15 9a9b15 3x8y11 9x y 39 m b18 5y3x 39 -6m3b8 2a2b4 x3y5 4a6b9 x8y9 2x3y 61 0.5x0.7y0.3 8y5x 61 0.1x0.6y2.4 4a b19 4x7y20 2a5b5 x8y20 x4y 4 8m b1 4y7x 4

2、-7m3b23 4a3b8 6x8y-2 7a3b7 7x3y8 8x4y 180 0.7x0.4y3 4y x 180 0.8x0.1y1.1 5a5b10 7x6y8 7a7b20 7x2y4 x9y 157 7m2b1 9y x 157 -3m4b14 3a2b19 6x5y-5 2a8b10 8x2y10 6x9y 167 0.9x0.5y0.3 8y3x 167 0.1x0.5y1.8 6a3b6 2x8y2 6a5b17 9x y3 3x5y 175 6m8b19 4y9x 175 -6m6b26 3a b6 5x6y-4 9a3b14 9x2y-5 4x8y 184 0.5x0.

3、8y0.3 2y8x 184 0.6x0.5y3.9 6a5b12 2x2y7 8a5b18 6x3y20 9x5y 64 5m2b18 3y9x 64 -5m5b29 5a7b10 6x9y1 4a3b4 2x9y2 7x4y 161 0.4x0.9y1.4 7y6x 161 0.6x0.2y3.9 4a9b14 9x7y16 7a5b2 8x5y20 8x y 86 5m3b10 2y8x 86 -1m8b11 3a4b12 5x5y-6 a b17 8x2y7 5x y 59 0.6x0.4y3.7 7y2x 59 0.1x0.2y1.7 5a3b16 9x7y20 4a7b12 4x2

4、y13 x6y 102 3m5b6 3y6x 102 -6m9b19 7a7b19 x7y2 6a3b10 7x y1 2x5y -8 0.1x0.3y1.3 7y8x -8 0.2x0.9y1.2 8a6b4 2x9y7 2a3b3 8x2y4 9x4y 184 8m9b6 9y9x 184 -8m9b20 8a2b9 2x3y1 9a3b11 7x4y-8 5x4y 48 0.5x0.6y3.4 2y7x 48 0.5x0.8y3.4 9a6b13 7x3y10 a5b14 6x5y16 4x9y 90 2m5b13 4y5x 90 -7m6b18 2a8b10 6x9y-2 7a6b12

5、 5x8y-2 9x7y 12 0.9x0.1y1.7 2y9x 12 0.8x0.6y0.6 6a6b12 4x3y19 8a2b6 2x4y17 7x2y 114 m5b18 7y9x 114 -10m b26 7a2b2 4x3y5 5a6b15 x6y8 5x2y -2 0.2x0.6y1.4 8y5x -2 0.1x0.6y1.1 9a8b14 5x5y14 6a8b4 x2y7 8x8y 152 6m2b19 6y7x 152 -8m5b24 7a9b19 9x8y1 3a5b6 6x7y-2 9x8y 32 0.4x0.3y0.7 9y3x 32 0.8x0.2y3.5 4a3b

6、18 2x4y11 4a9b12 6x3y3 2x3y 32 8m7b23 6y x 32 -7m8b19 6a6b12 4x7y1 5a2b20 9x2y9 7x4y 127 0.1x0.8y1.4 4y6x 127 0.4x0.3y0.4 6a2b19 x9y4 9a6b20 7x9y4 x8y 72 4m7b6 5y8x 72 -1m2b2 5a2b20 4x6y0 2a6b6 9x7y1 6x4y 57 0.2x0.8y0.7 5y9x 57 0.1x0.2y1.2 9a6b19 8x6y5 6a5b6 x4y12 9x2y 8 9m9b19 y2x 8 -9m4b26 2a b15 4x8y-9 8a b15 5x7y-5 7x8y 25 0.5x0.6y1.6 5y9x 25 0.6x0.9y3.7