x+42+39=180

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Solution for x+42+39=180 equation: 


Simplifying
x + 42 + 39 = 180

Reorder the terms:
42 + 39 + x = 180

Combine like terms: 42 + 39 = 81
81 + x = 180

Solving
81 + x = 180

Solving for variable 'x'.

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

Add '-81' to each side of the equation.
81 + -81 + x = 180 + -81

Combine like terms: 81 + -81 = 0
0 + x = 180 + -81
x = 180 + -81

Combine like terms: 180 + -81 = 99
x = 99

Simplifying
x = 99

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