180-x=2(x+20)

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


Simplifying
180 + -1x = 2(x + 20)

Reorder the terms:
180 + -1x = 2(20 + x)
180 + -1x = (20 * 2 + x * 2)
180 + -1x = (40 + 2x)

Solving
180 + -1x = 40 + 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.
180 + -1x + -2x = 40 + 2x + -2x

Combine like terms: -1x + -2x = -3x
180 + -3x = 40 + 2x + -2x

Combine like terms: 2x + -2x = 0
180 + -3x = 40 + 0
180 + -3x = 40

Add '-180' to each side of the equation.
180 + -180 + -3x = 40 + -180

Combine like terms: 180 + -180 = 0
0 + -3x = 40 + -180
-3x = 40 + -180

Combine like terms: 40 + -180 = -140
-3x = -140

Divide each side by '-3'.
x = 46.66666667

Simplifying
x = 46.66666667

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