Answer:
This many.
Explanation:
Simplifying
5 = 5x + -20
Reorder the terms:
5 = -20 + 5x
Solving
5 = -20 + 5x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-5x' to each side of the equation.
5 + -5x = -20 + 5x + -5x
Combine like terms: 5x + -5x = 0
5 + -5x = -20 + 0
5 + -5x = -20
Add '-5' to each side of the equation.
5 + -5 + -5x = -20 + -5
Combine like terms: 5 + -5 = 0
0 + -5x = -20 + -5
-5x = -20 + -5
Combine like terms: -20 + -5 = -25
-5x = -25
Divide each side by '-5'.
x = 5
Simplifying
x = 5