What plus 5 equals 30?

This is how to calculate "What plus 5 equals 30?" In other words, what do you add to 5 to get 30? We start by converting this word problem into an equation where "What" is what we want to solve:

What + 5 = 30

To solve this equation, we first add -5 to each side of the equal sign like this:

What + 5 - 5 = 30 - 5

Then, we do the calculation to get the answer to "What plus 5 equals 30?" as follows:

What = 25

The answer to "What plus 5 equals 30?" is 25. You know this answer is correct because 25 plus 5 equals 30.

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What plus 5 equals 31?
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