9 plus what equals 56?

This is how to calculate "9 plus what equals 56?" In other words, 9 plus a number equals 56. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

9 + what = 56

To solve this equation, we first add -9 to each side of the equal sign like this:

9 - 9 + what = 56 - 9

Then, we do the calculation to get the answer to "9 plus what equals 56?" as follows:

What = 47

The answer to "9 plus what equals 56?" is 47. You know this answer is correct because 9 plus 47 equals 56.

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9 plus what equals 57?
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