43 plus what equals 7?

This is how to calculate "43 plus what equals 7?" In other words, 43 plus a number equals 7. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

43 + what = 7

To solve this equation, we first add -43 to each side of the equal sign like this:

43 - 43 + what = 7 - 43

Then, we do the calculation to get the answer to "43 plus what equals 7?" as follows:

What = -36

The answer to "43 plus what equals 7?" is -36. You know this answer is correct because 43 plus -36 equals 7.

Plus What Equals Calculator
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