20-2x+20-2x+40-2x+40-2x+40-2x+20-2x=

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Solution for 20-2x+20-2x+40-2x+40-2x+40-2x+20-2x= equation:


Simplifying
20 + -2x + 20 + -2x + 40 + -2x + 40 + -2x + 40 + -2x + 20 + -2x = 0

Reorder the terms:
20 + 20 + 40 + 40 + 40 + 20 + -2x + -2x + -2x + -2x + -2x + -2x = 0

Combine like terms: 20 + 20 = 40
40 + 40 + 40 + 40 + 20 + -2x + -2x + -2x + -2x + -2x + -2x = 0

Combine like terms: 40 + 40 = 80
80 + 40 + 40 + 20 + -2x + -2x + -2x + -2x + -2x + -2x = 0

Combine like terms: 80 + 40 = 120
120 + 40 + 20 + -2x + -2x + -2x + -2x + -2x + -2x = 0

Combine like terms: 120 + 40 = 160
160 + 20 + -2x + -2x + -2x + -2x + -2x + -2x = 0

Combine like terms: 160 + 20 = 180
180 + -2x + -2x + -2x + -2x + -2x + -2x = 0

Combine like terms: -2x + -2x = -4x
180 + -4x + -2x + -2x + -2x + -2x = 0

Combine like terms: -4x + -2x = -6x
180 + -6x + -2x + -2x + -2x = 0

Combine like terms: -6x + -2x = -8x
180 + -8x + -2x + -2x = 0

Combine like terms: -8x + -2x = -10x
180 + -10x + -2x = 0

Combine like terms: -10x + -2x = -12x
180 + -12x = 0

Solving
180 + -12x = 0

Solving for variable 'x'.

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

Add '-180' to each side of the equation.
180 + -180 + -12x = 0 + -180

Combine like terms: 180 + -180 = 0
0 + -12x = 0 + -180
-12x = 0 + -180

Combine like terms: 0 + -180 = -180
-12x = -180

Divide each side by '-12'.
x = 15

Simplifying
x = 15

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