39 plus what equals 47?

This is how to calculate "39 plus what equals 47?" In other words, 39 plus a number equals 47. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

39 + what = 47

To solve this equation, we first add -39 to each side of the equal sign like this:

39 - 39 + what = 47 - 39

Then, we do the calculation to get the answer to "39 plus what equals 47?" as follows:

What = 8

The answer to "39 plus what equals 47?" is 8. You know this answer is correct because 39 plus 8 equals 47.

Plus What Equals Calculator
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