|X-3|+|Y+15|=0 则3X+2Y=?
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|X-3|+|Y+15|=0则3X+2Y=?|X-3|+|Y+15|=0则3X+2Y=?|X-3|+|Y+15|=0则3X+2Y=?x=3y=-15所以结果是-21
|X-3|+|Y+15|=0 则3X+2Y=?
|X-3|+|Y+15|=0 则3X+2Y=?
|X-3|+|Y+15|=0 则3X+2Y=?
x=3 y=-15 所以 结果是-21
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