31+x+x=180

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Solution for 31+x+x=180 equation: 


Simplifying
31 + x + x = 180

Combine like terms: x + x = 2x
31 + 2x = 180

Solving
31 + 2x = 180

Solving for variable 'x'.

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

Add '-31' to each side of the equation.
31 + -31 + 2x = 180 + -31

Combine like terms: 31 + -31 = 0
0 + 2x = 180 + -31
2x = 180 + -31

Combine like terms: 180 + -31 = 149
2x = 149

Divide each side by '2'.
x = 74.5

Simplifying
x = 74.5

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