56 plus what equals 30?

This is how to calculate "56 plus what equals 30?" In other words, 56 plus a number equals 30. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

56 + what = 30

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

56 - 56 + what = 30 - 56

Then, we do the calculation to get the answer to "56 plus what equals 30?" as follows:

What = -26

The answer to "56 plus what equals 30?" is -26. You know this answer is correct because 56 plus -26 equals 30.

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56 plus what equals 31?
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