问题描述:
2(x+y)-10=4x (1+10%)x+(1+15%)y=17解方程组
2(x+y)-10=4x
(1+10%)x+(1+15%)y=17
2(x+y)-10=4x
(1+10%)x+(1+15%)y=17
问题解答:
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问题描述:
问题解答:
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