24 plus what equals 54?

This is how to calculate "24 plus what equals 54?" In other words, 24 plus a number equals 54. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

24 + what = 54

To solve this equation, we first add -24 to each side of the equal sign like this:

24 - 24 + what = 54 - 24

Then, we do the calculation to get the answer to "24 plus what equals 54?" as follows:

What = 30

The answer to "24 plus what equals 54?" is 30. You know this answer is correct because 24 plus 30 equals 54.

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24 plus what equals 55?
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