91 plus what equals 44?

This is how to calculate "91 plus what equals 44?" In other words, 91 plus a number equals 44. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

91 + what = 44

To solve this equation, we first add -91 to each side of the equal sign like this:

91 - 91 + what = 44 - 91

Then, we do the calculation to get the answer to "91 plus what equals 44?" as follows:

What = -47

The answer to "91 plus what equals 44?" is -47. You know this answer is correct because 91 plus -47 equals 44.

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91 plus what equals 45?
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