若|x+1|+|x+y-2|=0,求X.y的值
1个回答
|x+1|+|x+y-2|=0
|x+1|=0,|x+y-2|=0
x+1=0,x+y-2=0
x=-1,x+y-2=0
-1+y-2=0
y=3
所以
x=-1
y=3
相关问题
(1)若|x|+|y|=0,求x,y的值.(2)|x-1.2|+|y+2|=0,求x,y的值
1.若(x+y)^2-2x-2y+1=0,求(x+y)^2007值
若x2-2xy-y2-x+Y-1=0 求x-y的值
1.若|x-y|+|y-3|=0,求2x+y的值.
若|x+y-1|+(x-y-2)²=0,求代数式(x+2y)(x-2y)-(2x-y)(-y-2x)的值.
(1)若2x+y=0,求4x³+2xy(x+y)+y³的值
1.若多项式x^2-2xy+y^2-x+y-1=0,求x-y的值
(1).若X^2+Y^2+2X-4Y+5=0,求x+y的值.
若(x+y)(x+y-1)-12=0,求x+y的值.
若丨x+1丨+(x+y-2)²=0,求2x+y的值