若|5x-2y-3|+(x+6y-11)X(x+6y-11)=0成立,求x,y的值,
若|5x-2y-3|+(x+6y-11)X(x+6y-11)=0成立,求x,y的值,
若|5x-2x-3|+(x+6y-11)^2=0成立,求x.y的值
若│5x-2y-3│+(x+6y-11)²=0成立,求x、y的值
已知x.x+y.y-6x-8y+25=0,求3x.x+5y的值
已知x^3+xy^2+x+x^2y+y^3+y=0,求5x-6y/3x+4y的值.
(1)已知x+y=6,x²-y²=5,求x-y的值(2)若x+y=3,x²+y²
若(x-2)的平方+15y-11=0,求代数式-3(2x-y)-{7x-[6x+2y-(10x-8y
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/x+y=5,求x-y/2x+2y+5x+5y/3x-3y的值
当2x-y/x+y=3时,求代数式2x-y/2x+2y+x+y/6x-3y的值.
化简求值,若X方-2XY+Y方+1XY-11=0,求X方+6XY+9Y方分之X方-25Y方*5X-25Y分之X+3Y的值
x+2y=6,2x+3y=-11,求多项式3x+5y的值