若/X-2/+/Y+3/+/Z-5/=0计算:(1)X,Y,Z的值.(2)求/X/+/Y/+/Z/的值
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若/X-2/+/Y+3/+/Z-5/=0计算:(1)X,Y,Z的值.(2)求/X/+/Y/+/Z/的值
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