0
You can rephrase this question as an equation. If you call the number "n", then we can say:
(n + 7) / 2 = 5
Then we can solve it from there:
(n + 7) / 2 = 5
Multiply both sides by two:
2 * (n + 7) / 2 = 5 * 2
n + 7 = 10
Now subtract seven from both sides:
n + 7 - 7 = 10 - 7
n = 3
So the answer is three.
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