x+120+90=180

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Solution for x+120+90=180 equation: 


Simplifying
x + 120 + 90 = 180

Reorder the terms:
120 + 90 + x = 180

Combine like terms: 120 + 90 = 210
210 + x = 180

Solving
210 + x = 180

Solving for variable 'x'.

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

Add '-210' to each side of the equation.
210 + -210 + x = 180 + -210

Combine like terms: 210 + -210 = 0
0 + x = 180 + -210
x = 180 + -210

Combine like terms: 180 + -210 = -30
x = -30

Simplifying
x = -30

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