|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=?|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
|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