What minus 8 equals 91?

Here we will show you how to calculate "What minus 8 equals 91?" using simple algebra.
For the sentence, "What minus 8 equals 91?", we can make it into an algebra equation as follows:
X - 8 = 91
Then, we solve for X. To solve for X, add 8 to both sides:
X - 8 + 8 = 91 + 8
Which makes:
X = 99
Thus, the answer to "What minus 8 equals 91?" is 99 as illustrated below:
99 - 8 = 91