3 plus what equals 25?

This is how to calculate "3 plus what equals 25?" In other words, 3 plus a number equals 25. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

3 + what = 25

To solve this equation, we first add -3 to each side of the equal sign like this:

3 - 3 + what = 25 - 3

Then, we do the calculation to get the answer to "3 plus what equals 25?" as follows:

What = 22

The answer to "3 plus what equals 25?" is 22. You know this answer is correct because 3 plus 22 equals 25.

Plus What Equals Calculator
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