What plus 7 equals 30?

This is how to calculate "What plus 7 equals 30?" In other words, what do you add to 7 to get 30? We start by converting this word problem into an equation where "What" is what we want to solve:

What + 7 = 30

To solve this equation, we first add -7 to each side of the equal sign like this:

What + 7 - 7 = 30 - 7

Then, we do the calculation to get the answer to "What plus 7 equals 30?" as follows:

What = 23

The answer to "What plus 7 equals 30?" is 23. You know this answer is correct because 23 plus 7 equals 30.

What Plus Calculator
Here you can calculate a similar problem:

What plus 7 equals 31?
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.