若3x-√3x+2y+√3y=7+√3,求x-y
|x-2y|+√3x-4y =0求x y值
已知:x*x+√3y=√5,y*y+√3x=√5,且x≠y,求 y/x+x/y
若x+7y=y-3x,求x
已知X-Y/X+Y=3,求代数式2(x-y)/X+Y-3X+Y/X+Y
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
若x、y满足下面关系式:√x-y+√y-x+3=y-2,求3x+2y的算术平方根
√x(√x+2√y)=√y(6√x+5√y,求x-3√xy+2y/x+√xy-6y
若√(2-x)+√(x-2)-y=3,求y^x的算术平方根.
若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于
若x、y满足2x+y=6,x-3y=1,求7y(x-3y)²-2(3y-x)³的值
若x、y都是实数,且y=√(x-3)+√(3-x)+8 求x+y的值
若x、y都是实数,且y=√x-3+√3-x+8 求x+y的值