What plus 16 equals 55?

This is how to calculate "What plus 16 equals 55?" In other words, what do you add to 16 to get 55? We start by converting this word problem into an equation where "What" is what we want to solve:

What + 16 = 55

To solve this equation, we first add -16 to each side of the equal sign like this:

What + 16 - 16 = 55 - 16

Then, we do the calculation to get the answer to "What plus 16 equals 55?" as follows:

What = 39

The answer to "What plus 16 equals 55?" is 39. You know this answer is correct because 39 plus 16 equals 55.

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What plus 16 equals 56?
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