72 plus what equals 27?

This is how to calculate "72 plus what equals 27?" In other words, 72 plus a number equals 27. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

72 + what = 27

To solve this equation, we first add -72 to each side of the equal sign like this:

72 - 72 + what = 27 - 72

Then, we do the calculation to get the answer to "72 plus what equals 27?" as follows:

What = -45

The answer to "72 plus what equals 27?" is -45. You know this answer is correct because 72 plus -45 equals 27.

Plus What Equals Calculator
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72 plus what equals 28?
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