What minus 1 equals 80?

Here we will show you how to calculate "What minus 1 equals 80?" using simple algebra.
For the sentence, "What minus 1 equals 80?", we can make it into an algebra equation as follows:
X - 1 = 80
Then, we solve for X. To solve for X, add 1 to both sides:
X - 1 + 1 = 80 + 1
Which makes:
X = 81
Thus, the answer to "What minus 1 equals 80?" is 81 as illustrated below:
81 - 1 = 80