已知2x+3y-3=0,求9∧x×27∧y的值
已知2x+3y-3=0,求9∧x×27∧y的值
已知|3x-y|+|x+y|=0,求x-y除以x*y的值.
已知x^2-y^2=27,x-y=3,求y/x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2x-y/x+2y=3,求2(2x-y)/x+2y-9(x+2y)/2x-y+3的值.
已知:3x+2y=0,求27^x乘9^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^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