Colin was thinking of a number. Colin divides by 8, then adds 1 to get an answer of 2. What was the

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Colin was thinking of a number. Colin divides by 8, then adds 1 to get an answer of 2. What was the original number?

Let the number be n.

Divide by 8:
n/8

Then add 1:
n/8 + 1

The phrase get an answer of means an equation, so we set n/8 + 1 equal to 2:
n/8 + 1 = 2

To solve for n, we subtract 1 from each side to isolate the n term:
n/8 + 1 - 1 = 2 - 1

Cancel the 1's on the left side, we get:
n/8 = 1

Cross multiply:
n = 8*1
n = 8