已知|x-3|+|y-2/3|=0,求x+y的值
已知|3x-y|+|x+y|=0,求x-y除以x*y的值.
已知|2x-3y|+|3x-y-1|=0,求x,y的值.
已知4x-2y=0,求x-y/3x+2y的值
已知x-3y=0,求(2x+y)/(x^2-2xy+y^2)*(x-y)的值
已知x-3y=0,求(2x+y)/(x^2-2xy+y^2)*(x-y)的值.
已知x-3y=0,求(2x+y)(x-y)/x^2-2xy+y^2的值
已知x-3y=0,求2x+y/x-2xy+y乘(x-y)的值
已知y-2x=0,求3x²-2y²/(x+y)(x-y)的值
已知3x*+xy-2y*=0,求(x/y)-(y/x)-(x*+y*)/(xy)的值.*是平方
已知x.x+y.y-6x-8y+25=0,求3x.x+5y的值
已知x^2+y^2+xy-3y+3=0,求y^x的值
已知|3x+y-2|+(y-2)=0,求x^y的值.