y(x-1)=x. xy-y=x. x-xy=y. x(1-y)=y. x=y/1-y(y不等于1) 后面括号的y不等于1一定要加上!!谢谢
y(x-1)=x. xy-y=x. x-xy=y. x(1-y)=y. x=y/1-y(y不等于1)
y=x/(x-1)y(x-1)=xyx-y=xyx-x=yx(y-1)=yx=y/(y-1)谢谢采纳!
X=y/y-1
y(x-1)-x=0,yx-y-x=0,x(y-1)-y=0,x=y/y-1