What minus 99 equals 91?

Here we will show you how to calculate "What minus 99 equals 91?" using simple algebra.
For the sentence, "What minus 99 equals 91?", we can make it into an algebra equation as follows:
X - 99 = 91
Then, we solve for X. To solve for X, add 99 to both sides:
X - 99 + 99 = 91 + 99
Which makes:
X = 190
Thus, the answer to "What minus 99 equals 91?" is 190 as illustrated below:
190 - 99 = 91