imlazyhungry25 imlazyhungry25

10-09-2017
Mathematics

contestada

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

Respuesta :

dpokharnaotzjgn dpokharnaotzjgn

10-09-2017

So here, just work backwards:

7+8=15
15/3=5

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crazygal1234ow2sre crazygal1234ow2sre

10-09-2017

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

Answer Link

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good job