二元一次方程组专项练习题144.docx

1、二元一次方程组专项练习题144 9a b18 6x6y14 7a8b19 4x2y12 8x y 122 9m4b13 7y2x 122 -1m6b12 4a3b17 6x5y-10 4a3b1 2x6y-5 7x2y 159 0.5x0.5y2.1 8y8x 159 0.8x0.8y2.4 7a8b5 8x2y10 7a2b19 2x8y4 3x9y 6 7m b1 4y3x 6 -1m5b17 a7b8 8x y-3 5a3b6 7x y-3 6x2y 11 0.6x0.7y0.7 7y6x 11 0.2x0.8y1.7 5a6b6 3x3y1 2a9b9 3x9y17 5x9y 58 6

2、m7b15 5y x 58 -9m4b24 4a8b1 6x2y4 3a9b9 3x9y-9 2x5y 0 0.1x0.4y3 2y6x 0 0.8x0.7y2.4 5a5b2 x2y7 6a7b10 4x7y17 3x4y 148 4m4b21 7y3x 148 -4m3b7 3a b18 8x5y-1 2a2b14 2x5y0 6x y 159 0.9x0.8y3.6 9y3x 159 0.9x0.4y3.2 2a b17 7x9y19 9a5b11 4x3y10 7x3y 21 8m5b22 y6x 21 -2m3b2 5a4b10 2x3y3 2a4b15 x5y10 3x9y 153

3、 0.4x0.8y1.8 9y8x 153 0.2x0.7y1.6 3a9b3 6x5y14 6a3b8 9x2y10 6x8y 38 8m6b30 y6x 38 -8m3b17 2a5b18 3x9y6 6a2b7 4x4y-2 3x3y 89 0.8x0.3y0.4 4y2x 89 0.7x0.2y0.2 2a8b20 6x7y5 8a8b6 8x8y15 4x7y -8 5m3b7 4y9x -8 -10m b15 8a5b14 6x5y-5 6a6b20 9x8y-3 4x y 94 0.7x0.9y1.6 4y8x 94 0.4x0.6y3.3 9a3b7 5x9y16 4a5b4

4、4x5y15 9x2y 39 m9b26 y x 39 -7m4b1 9a2b10 2x3y4 8a4b5 5x3y-9 x3y 188 0.4x0.7y1.9 2y3x 188 0.9x0.8y2.2 a6b10 9x y5 9a5b8 7x8y16 8x4y 71 4m5b1 2y x 71 -6m4b3 a7b8 x3y9 5a9b7 9x4y10 2x5y 26 0.5x0.2y1.7 6y5x 26 0.3x0.8y1 3a6b7 x3y11 5a9b4 x y20 4x2y 4 7m8b18 6y3x 4 -8m6b15 6a8b12 6x9y9 6a b8 7x7y7 3x y

5、75 0.3x0.6y0.9 2y8x 75 0.1x0.2y2.4 9a3b14 3x4y16 2a6b12 7x6y15 x4y 22 8m5b18 3y9x 22 -10m8b20 7a6b17 9x5y-9 4a2b7 3x6y1 6x y 119 0.2x0.1y3.8 5y6x 119 0.1x0.3y2.4 8a6b17 8x2y4 5a2b5 6x9y13 4x9y 195 7m b29 6y3x 195 -5m2b0 5a4b13 7x9y4 4a3b10 7x3y5 x2y 35 0.4x0.5y2.3 4y9x 35 0.5x0.8y0.6 9a8b12 6x3y3 5a

6、8b7 9x8y13 5x6y 44 4m5b22 4y x 44 -8m8b28 6a5b14 2x8y-10 8a5b12 5x3y2 9x y 116 0.4x0.8y2.4 4y8x 116 0.8x0.6y0.6 4a b17 3x6y1 a9b2 9x4y4 x3y 34 7m5b8 3y3x 34 -4m b16 a6b13 3x5y-3 a5b18 3x8y-5 8x8y 40 0.8x0.5y1.5 9y8x 40 0.5x0.7y2.1 3a b19 2x5y19 5a9b4 8x7y4 9x5y 172 5m8b5 9y6x 172 -7m4b3 7a2b11 7x6y5 2a8b15 4x5y-4 4x5y 170 0.3x0.3y0.9 7y3x 170 0.5x0.8y2.4