28 plus what equals 68?

This is how to calculate "28 plus what equals 68?" In other words, 28 plus a number equals 68. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

28 + what = 68

To solve this equation, we first add -28 to each side of the equal sign like this:

28 - 28 + what = 68 - 28

Then, we do the calculation to get the answer to "28 plus what equals 68?" as follows:

What = 40

The answer to "28 plus what equals 68?" is 40. You know this answer is correct because 28 plus 40 equals 68.

Plus What Equals Calculator
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28 plus what equals 69?
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