解方程组:6x+5y=-1,2x-3y=-5
1/2x-2y=-74,x-6y=-12解方程组,x/5-y/2=2,2x+3y=4解方程组
解方程组{(x-2)(y+3)=(x+1)(y-1) {(x+1)(y+1)=(x-1)(y+5)
解二元一次方程组:{5(x+y)+3(x-y)=2{7(x+y)-3(x-y)=-6
解方程组 {(x+y)/2+(x-y)/3=6 5(x+y)-2(x-y)=4
解方程组 X+Y/2+X-Y/3=6 4[X+Y]-5[X-Y]=2
解方程组:x+y/2+x-y/3=6 4(x+y)-5(x-y)=12
解二元一次方程组 x+y=3 1/2(x+y)-3y=5
2+3x/5+4y=9,4+6y-y=1解方程组
解方程组{x/3+y/2=1/6、y/3-x/4=-5/6
解方程组(x+y)(x-2y)=-5 (x-y)(x+2y)=7
2x+3y=1 5x-6y=7解方程组
用图像法解方程组 x+2y=3 6x-5y=1