解方程组{(x-1)(y-2)=xy {x(x+2)-4y(y-1)=(x-2y)(x+2y)

解方程组:(x-1)(y-2)=xy和x(x+2)-4y(y-1)=(x+2y)(x-2y) 解方程组{(x-1)(y-2)=xy {x(x+2)-4y(y-1)=(x-2y)(x+2y) 解方程组：（x-1)(y-2)=xy,x(x+2)-4y(y-1)=(x+2y)(x-2y) 解方程组；（x-1）（y-2）=xy,x(x+2)-4y(y-1)=(x+2y)(x-2) 求方程组的解,方程组xy/(2x+y)-xy/(2x-y)=3,xy/(2x-y)+xy/(2x+y)=4 解方程组｛ 3x-4y(x-y)=3 { 2x-3y=1 解方程组：2(x-y)/3-x+y/4=-1 ,6(x+y)-4(2x-y)=16 要求 解方程组：｛(X-1)(Y+1)=(X+1)(Y+1)｛X(2+Y)-6=Y(X-4) 解二元一次方程组{3(x+y)-4(x-y)=4,x+y/2+x-y/6=1 解方程组3(x+y)-4(x-y)=4和(x+y)/2+(x-y)/6=1 解二元一次方程组{3(x+y)-(x-y)=4,x+y/2+x-y/6=1 解二元一次方程组：3(x+y)-4(x-y)=4,x+y/2+x-y/6+1