What minus 5 equals 15?

Here we will show you how to calculate "What minus 5 equals 15?" using simple algebra.
For the sentence, "What minus 5 equals 15?", we can make it into an algebra equation as follows:
X - 5 = 15
Then, we solve for X. To solve for X, add 5 to both sides:
X - 5 + 5 = 15 + 5
Which makes:
X = 20
Thus, the answer to "What minus 5 equals 15?" is 20 as illustrated below:
20 - 5 = 15