89 plus what equals 51?

This is how to calculate "89 plus what equals 51?" In other words, 89 plus a number equals 51. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:

89 + what = 51

To solve this equation, we first add -89 to each side of the equal sign like this:

89 - 89 + what = 51 - 89

Then, we do the calculation to get the answer to "89 plus what equals 51?" as follows:

What = -38

The answer to "89 plus what equals 51?" is -38. You know this answer is correct because 89 plus -38 equals 51.

Plus What Equals Calculator
Here you can calculate a similar problem:

89 plus what equals 52?
Do you think you can solve a similar problem on your own? Try to figure out the next problem on our list and then go here to check the answer.