A number (x) minus 25 (-25) is equal to (=) 51 (51).
Rewrite everything only in parenthesis.
x - 25 = 51
Now, we can solve.
To solve for x, we need for it to be on one side by itself. However, x is subtrating 25. To get rid of -25, we must perform the opposite order of operations.
Remember, what you do to one side of an equation, you must do to the other.
Add 25 to both sides.
-25 + 25 = 0
51 + 25 = 76.
We are now left with:
x = 76.
I hope this helps!