I'm thinking of a number. When you triple my number and subtract 8 you get 7. What is my number?

asked Jul 9, 2018 131k views

5 votes

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1 vote

3a - 8 = 7
3a (-8 + 8) = (7+8)
3a = 15
(3a/3) = (15/3)
a = 5
The answer is 5

Taek answered Jul 10, 2018

by Taek

7.6k points

4 votes

So here, just work backwards:

7+8=15
15/3=5

Ren P answered Jul 14, 2018

by Ren P

6.3k points

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