120+x-30=180

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Solution for 120+x-30=180 equation: 


Simplifying
120 + x + -30 = 180

Reorder the terms:
120 + -30 + x = 180

Combine like terms: 120 + -30 = 90
90 + x = 180

Solving
90 + x = 180

Solving for variable 'x'.

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

Add '-90' to each side of the equation.
90 + -90 + x = 180 + -90

Combine like terms: 90 + -90 = 0
0 + x = 180 + -90
x = 180 + -90

Combine like terms: 180 + -90 = 90
x = 90

Simplifying
x = 90

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