75 plus what equals 55?

This is how to calculate "75 plus what equals 55?" In other words, 75 plus a number equals 55. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

75 + what = 55

To solve this equation, we first add -75 to each side of the equal sign like this:

75 - 75 + what = 55 - 75

Then, we do the calculation to get the answer to "75 plus what equals 55?" as follows:

What = -20

The answer to "75 plus what equals 55?" is -20. You know this answer is correct because 75 plus -20 equals 55.

Plus What Equals Calculator
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75 plus what equals 56?
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