120+42+x=180

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Solution for 120+42+x=180 equation: 


Simplifying
120 + 42 + x = 180

Combine like terms: 120 + 42 = 162
162 + x = 180

Solving
162 + x = 180

Solving for variable 'x'.

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

Add '-162' to each side of the equation.
162 + -162 + x = 180 + -162

Combine like terms: 162 + -162 = 0
0 + x = 180 + -162
x = 180 + -162

Combine like terms: 180 + -162 = 18
x = 18

Simplifying
x = 18

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