|2x-3|+|3y+2|=0 求x-y=?义:2x-3的绝对值加上3y+2的绝对值等于0,求x-y等于多少?
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|2x-3|+|3y+2|=0 求x-y=?义:2x-3的绝对值加上3y+2的绝对值等于0,求x-y等于多少?
|2x-3|+|3y+2|=0 求x-y=?义:2x-3的绝对值加上3y+2的绝对值等于0,求x-y等于多少?
|2x-3|+|3y+2|=0 求x-y=?义:2x-3的绝对值加上3y+2的绝对值等于0,求x-y等于多少?
|2x-3|+|3y+2|=0 因为|2x-3|≥0|3y+2|≥0所以|2x-3|=0 |3y+2|=0 所以2x-3=0 x=3/23y+2=0 y=-2/3x-y=3/2-(-2/3)=3/2+2/3=13/6
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