56 plus what equals 79?

This is how to calculate "56 plus what equals 79?" In other words, 56 plus a number equals 79. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

56 + what = 79

To solve this equation, we first add -56 to each side of the equal sign like this:

56 - 56 + what = 79 - 56

Then, we do the calculation to get the answer to "56 plus what equals 79?" as follows:

What = 23

The answer to "56 plus what equals 79?" is 23. You know this answer is correct because 56 plus 23 equals 79.

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56 plus what equals 80?
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