42+x+57=180

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Solution for 42+x+57=180 equation: 


Simplifying
42 + x + 57 = 180

Reorder the terms:
42 + 57 + x = 180

Combine like terms: 42 + 57 = 99
99 + x = 180

Solving
99 + x = 180

Solving for variable 'x'.

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

Add '-99' to each side of the equation.
99 + -99 + x = 180 + -99

Combine like terms: 99 + -99 = 0
0 + x = 180 + -99
x = 180 + -99

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

Simplifying
x = 81

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