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Step2247 [10]
3 years ago
8

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

Mathematics
2 answers:
CaHeK987 [17]3 years ago
7 0
So here, just work backwards:

7+8=15
15/3=5

Alja [10]3 years ago
5 0
3a - 8 = 7
3a (-8 + 8) = (7+8)
3a = 15
(3a/3) = (15/3)
a = 5
The answer is 5
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