若10.5x -10 = 36-3y=14+A,x=?y=?
若10.5x -10 = 36-3y=14+A,x=?y=?
若[-3(x+y)^m*(x-y)^2n]^2*[-(x+y)^2]=-a(x+y)^10*(x-y)^12-n,求m,
若10.5x-10=36-3y=14+A,则x=( ),y=( )
若10.5x-10=36-3y=14+A,求x和y的值
若集合A={(x,y)|y=x²,x∊R},B={(x,y)|y=2x²+2x-3,x&
6(x-y)-2(x+y)=14 3(x-y)+(x+y)=5
若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于
设A={(x,y)}|3x+2y|.
若x+7y=y-3x,求x
如果分式3x-6y/x+y=0,那么x,y 应满足 A、x=2y B、x≠-y C、x=2y且x≠-y D、x=2y且y
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)