15问答网 > {3(x-1)=y+5,{5(y-1)=3(x+5)怎么解 要过程简便的 二元，急 要快要准确

{3(x-1)=y+5,{5(y-1)=3(x+5)怎么解 要过程简便的 二元，急 要快要准确

2025-02-15 16:29:16
推荐回答（1个）
回答1：

你好，这是我个人的答案：解方程<1>得y=3x-8,把y=3x-8代入方程<2>中得5(3x-9)=3(x+5),解得x=4,把x=4代入方程<1>中得3(4-1)=y+5,解得y=4,所以原方程的解是x=4,y=4,不知是否正确

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