
This is how to calculate "45 plus what equals 31?" In other words, 45 plus a number equals 31. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:
45 + what = 31
To solve this equation, we first add -45 to each side of the equal sign like this:
45 - 45 + what = 31 - 45
Then, we do the calculation to get the answer to "45 plus what equals 31?" as follows:
What = -14
The answer to "45 plus what equals 31?" is -14. You know this answer is correct because 45 plus -14 equals 31.
45 plus what equals 32?
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