What plus 8 equals 17?

This is how to calculate "What plus 8 equals 17?" In other words, what do you add to 8 to get 17? We start by converting this word problem into an equation where "What" is what we want to solve:

What + 8 = 17

To solve this equation, we first add -8 to each side of the equal sign like this:

What + 8 - 8 = 17 - 8

Then, we do the calculation to get the answer to "What plus 8 equals 17?" as follows:

What = 9

The answer to "What plus 8 equals 17?" is 9. You know this answer is correct because 9 plus 8 equals 17.

What Plus Calculator
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