10(x+2)=3(x-5)+7?
回答 (2)
2007-02-22 7:30 pm
✔ 最佳答案
10(x+2)=3(x-5)+7 10x + 20 = 3x - 15 + 7
10x - 3x = -20 -15 + 7
7x = -28
x = -4
收錄日期: 2021-04-23 21:02:42
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https://hk.answers.yahoo.com/question/index?qid=20070222000051KK01231