What minus 39 equals 99?

Here we will show you how to calculate "What minus 39 equals 99?" using simple algebra.
For the sentence, "What minus 39 equals 99?", we can make it into an algebra equation as follows:
X - 39 = 99
Then, we solve for X. To solve for X, add 39 to both sides:
X - 39 + 39 = 99 + 39
Which makes:
X = 138
Thus, the answer to "What minus 39 equals 99?" is 138 as illustrated below:
138 - 39 = 99