x+20=180-2(x+20)

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Solution for x+20=180-2(x+20) equation:


Simplifying
x + 20 = 180 + -2(x + 20)

Reorder the terms:
20 + x = 180 + -2(x + 20)

Reorder the terms:
20 + x = 180 + -2(20 + x)
20 + x = 180 + (20 * -2 + x * -2)
20 + x = 180 + (-40 + -2x)

Combine like terms: 180 + -40 = 140
20 + x = 140 + -2x

Solving
20 + x = 140 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
20 + x + 2x = 140 + -2x + 2x

Combine like terms: x + 2x = 3x
20 + 3x = 140 + -2x + 2x

Combine like terms: -2x + 2x = 0
20 + 3x = 140 + 0
20 + 3x = 140

Add '-20' to each side of the equation.
20 + -20 + 3x = 140 + -20

Combine like terms: 20 + -20 = 0
0 + 3x = 140 + -20
3x = 140 + -20

Combine like terms: 140 + -20 = 120
3x = 120

Divide each side by '3'.
x = 40

Simplifying
x = 40

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