84 plus what equals 69?

This is how to calculate "84 plus what equals 69?" In other words, 84 plus a number equals 69. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

84 + what = 69

To solve this equation, we first add -84 to each side of the equal sign like this:

84 - 84 + what = 69 - 84

Then, we do the calculation to get the answer to "84 plus what equals 69?" as follows:

What = -15

The answer to "84 plus what equals 69?" is -15. You know this answer is correct because 84 plus -15 equals 69.

Plus What Equals Calculator
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84 plus what equals 70?
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