1+7x<57 solve using addition & multiplication principle?
回答 (5)
2010-09-07 4:34 pm
✔ 最佳答案
1 + 7x < 577x < 57 - 1
7x < 56
x < 56/7
x < 8
2010-09-07 11:39 pm
7x < 56
x < 8
x < 8
2010-09-07 11:36 pm
1 + 7x < 57
7x < 56
x < 8
7x < 56
x < 8
2010-09-07 11:33 pm
1 + 7x < 57
7x < 56
x < 8
7x < 56
x < 8
2010-09-07 11:33 pm
7x < 57 - 1
7x < 56
x < 56/7
x < 8
7x < 56
x < 56/7
x < 8
收錄日期: 2021-05-01 13:22:21
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https://hk.answers.yahoo.com/question/index?qid=20100907082921AAvPEWx