68 plus what equals 77?

This is how to calculate "68 plus what equals 77?" In other words, 68 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:

68 + what = 77

To solve this equation, we first add -68 to each side of the equal sign like this:

68 - 68 + what = 77 - 68

Then, we do the calculation to get the answer to "68 plus what equals 77?" as follows:

What = 9

The answer to "68 plus what equals 77?" is 9. You know this answer is correct because 68 plus 9 equals 77.

Plus What Equals Calculator
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68 plus what equals 78?
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