|3X+2Y-8|与(X+Y-1)²互为相反数,则X=?Y=?
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![|3X+2Y-8|与(X+Y-1)²互为相反数,则X=?Y=?](/uploads/image/z/5412728-56-8.jpg?t=%7C3X%2B2Y-8%7C%E4%B8%8E%28X%2BY-1%29%26%23178%3B%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%2C%E5%88%99X%3D%3FY%3D%3F)
|3X+2Y-8|与(X+Y-1)²互为相反数,则X=?Y=?
|3X+2Y-8|与(X+Y-1)²互为相反数,则X=?Y=?
|3X+2Y-8|与(X+Y-1)²互为相反数,则X=?Y=?
3x+2y-8=0(1)
x+y-1=0(2)
(1)-(2)×2得:
3x-2x-8+2=0;
x=6;
带入(2)得:
6+y-1=0;
y=1-6=-5;
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解;
|3X+2Y-8|与(X+Y-1)²互为相反数
∴
|3X+2Y-8|+(X+Y-1)²=0
∴
3x+2y-8=0 (1)
x+y-1=0 (2)
(1)-(2)*2得
x-8+2=0
∴x=6
∴y=-5