What minus 40 equals 84?

Here we will show you how to calculate "What minus 40 equals 84?" using simple algebra.
For the sentence, "What minus 40 equals 84?", we can make it into an algebra equation as follows:
X - 40 = 84
Then, we solve for X. To solve for X, add 40 to both sides:
X - 40 + 40 = 84 + 40
Which makes:
X = 124
Thus, the answer to "What minus 40 equals 84?" is 124 as illustrated below:
124 - 40 = 84