What minus 78 equals 57?

Here we will show you how to calculate "What minus 78 equals 57?" using simple algebra.
For the sentence, "What minus 78 equals 57?", we can make it into an algebra equation as follows:
X - 78 = 57
Then, we solve for X. To solve for X, add 78 to both sides:
X - 78 + 78 = 57 + 78
Which makes:
X = 135
Thus, the answer to "What minus 78 equals 57?" is 135 as illustrated below:
135 - 78 = 57