65 plus what equals 77?

This is how to calculate "65 plus what equals 77?" In other words, 65 plus a number equals 77. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

65 + what = 77

To solve this equation, we first add -65 to each side of the equal sign like this:

65 - 65 + what = 77 - 65

Then, we do the calculation to get the answer to "65 plus what equals 77?" as follows:

What = 12

The answer to "65 plus what equals 77?" is 12. You know this answer is correct because 65 plus 12 equals 77.

Plus What Equals Calculator
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65 plus what equals 78?
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