First, you will need to subtract 25 on both sides of the equation since it is adding with x, so
25-3x-25 = -95-25
The 25’s cancel out so,
-3x=-120
Now you have to divide -3 on both sides of the equation since it is multiplying with x, so
-3x 120
—— = ——-
-3 -3
Negative 3 cancels out on the left side of the equation, and 120 divided by negative 3 is -40
x = -40
