已知(x-1)2+4|y-6|=0,则5x+6y-4x-8y=______.
已知2x+3y=5,则6x-4y-2(x-5y)=______.
已知(x-1)2+4|y-6|=0,则5x+6y-4x-8y=______.
已知(x-1)2+4|y-6|=0,则5x+6y-4x+8y=?
已知(x-3)2+|2x-3y+6|=0,则x=______,y=______.
已知x*x+4x+y*y-2y+5=0,则x*x+y*y=?
已知x²+y²-8x+6y+25=0,求(x-y+4xy/x-y)(x+y-4xy/x+y)
已知X,Y,满足(X+3Y)(X-3Y)=-10(Y^2-6/5)和2X(Y-1)+4(1/2X-1)=0
已知x.x+y.y+8x+6y+25=0,求代数式(x.x-4y.y)/(x.x+4xy+4y.y)-x/(x+2y)的
已知(x+y+2)2+|2x-3y-1|=0,则x+y=______.
若(x+1)2+4|y-6|=0,则7x+8y+4x-6y的值为______.
若4x+3y+5=0,则3(8y-x)-5(x+6y-2)的值等于______.
若2x+3y-1=y-x-8=x+6,则2x-y=______.