180-x-20=3x

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Solution for 180-x-20=3x equation:


Simplifying
180 + -1x + -20 = 3x

Reorder the terms:
180 + -20 + -1x = 3x

Combine like terms: 180 + -20 = 160
160 + -1x = 3x

Solving
160 + -1x = 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
160 + -1x + -3x = 3x + -3x

Combine like terms: -1x + -3x = -4x
160 + -4x = 3x + -3x

Combine like terms: 3x + -3x = 0
160 + -4x = 0

Add '-160' to each side of the equation.
160 + -160 + -4x = 0 + -160

Combine like terms: 160 + -160 = 0
0 + -4x = 0 + -160
-4x = 0 + -160

Combine like terms: 0 + -160 = -160
-4x = -160

Divide each side by '-4'.
x = 40

Simplifying
x = 40

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