88 plus what equals 87?

This is how to calculate "88 plus what equals 87?" In other words, 88 plus a number equals 87. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

88 + what = 87

To solve this equation, we first add -88 to each side of the equal sign like this:

88 - 88 + what = 87 - 88

Then, we do the calculation to get the answer to "88 plus what equals 87?" as follows:

What = -1

The answer to "88 plus what equals 87?" is -1. You know this answer is correct because 88 plus -1 equals 87.

Plus What Equals Calculator
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88 plus what equals 88?
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