1) Translate "the sum of six and twice a number is one less than the number " into an equation and solve .
2) 5over4 + 2over3 = 1over4
3) Three times the difference between four times a number and seven is 15 . Find the number.
Help me solve them and please show work.
Help with math question?
2014-03-14 5:31 am
回答 (2)
2014-03-14 5:32 am
✔ 最佳答案
"the sum of six and twice a number is one less than the number"6 + 2x = x - 1
2014-03-14 5:42 am
1. call "a number" x.
6+2x=x-1
solving:
2x - x = - 1 - 6
x = -7
2. 5/4+2/3=1/4
3. 3(4x-7) = 15
3*15=4 x - 7
45+7=4x
52/4=x
x=13
6+2x=x-1
solving:
2x - x = - 1 - 6
x = -7
2. 5/4+2/3=1/4
3. 3(4x-7) = 15
3*15=4 x - 7
45+7=4x
52/4=x
x=13
收錄日期: 2021-04-21 00:07:45
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https://hk.answers.yahoo.com/question/index?qid=20140313213125AAyWrYD