3x=(180-x)

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Solution for 3x=(180-x) equation: 


Simplifying
3x = (180 + -1x)

Remove parenthesis around (180 + -1x)
3x = 180 + -1x

Solving
3x = 180 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
3x + x = 180 + -1x + x

Combine like terms: 3x + x = 4x
4x = 180 + -1x + x

Combine like terms: -1x + x = 0
4x = 180 + 0
4x = 180

Divide each side by '4'.
x = 45

Simplifying
x = 45

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