解方程组.2x-7y=3,3x-8y=10
解方程组.2x-7y=3,3x-8y=10
解方程组:﹛2x-7y=8,3x-8y=10
解方程组X+Y/2=3X-2Y=10+6X+Y/4
解方程组24/(x+y) +24/(x-y) = 7/3 ,8/(x+y) +18/(x-y) = 4/3
解方程组:(x+3)(y-2)=(x-3)(y+10),(x+1)(y+3)=(x-2)(y+12)
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/3-x+y/4=2 x-y/6-x+y/8=3
解方程组 2x+y(y-2x)=9 (x+y)(x+y-3)=10
2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51 解方程组
解方程组﹛2(x+y)-3(x-y)=1 6(x+y)+7(x-y)=51
解方程组 10(x-y)=3(x+y)+15 6(x+y)=4(2x-y)+16
解方程组 1、3y=2x 3x+4y+805=0 2、2x-7y=8 3x-8Y-10=0 3、2x-7y=8 y-2x