-20(8x+20)=0

Solution for -20(8x+20)=0 equation:

Simplifying
-20(8x + 20) = 0

Reorder the terms:
-20(20 + 8x) = 0
(20 * -20 + 8x * -20) = 0
(-400 + -160x) = 0

Solving
-400 + -160x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '400' to each side of the equation.
-400 + 400 + -160x = 0 + 400

Combine like terms: -400 + 400 = 0
0 + -160x = 0 + 400
-160x = 0 + 400

Combine like terms: 0 + 400 = 400
-160x = 400

Divide each side by '-160'.
x = -2.5

Simplifying
x = -2.5