solving equatons?

👨🏻‍🏫 學術台數學

2017-03-08 2:38 am

1) x+1 = 2(x+1)
2) 9(x+7)= 2(5x-7)
3) 3(x+4)= 5(x-2)

回答 (3)

2017-03-08 3:29 am

I have already answered these questions

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2017-03-08 3:26 am

1)
x + 2 = 2x + 2
0 = x

2)
9x + 63 = 10x - 14
77 = x

3)
3x + 12 = 5x - 10
22 = 2x
x = 11

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2017-03-08 2:42 am

Refer to the picture, i solved it.

Good luck xx

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收錄日期: 2021-05-01 20:56:34
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170307183814AAWWXbN

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