x+8+x+12=180

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Solution for x+8+x+12=180 equation: 


Simplifying
x + 8 + x + 12 = 180

Reorder the terms:
8 + 12 + x + x = 180

Combine like terms: 8 + 12 = 20
20 + x + x = 180

Combine like terms: x + x = 2x
20 + 2x = 180

Solving
20 + 2x = 180

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + 2x = 180 + -20

Combine like terms: 20 + -20 = 0
0 + 2x = 180 + -20
2x = 180 + -20

Combine like terms: 180 + -20 = 160
2x = 160

Divide each side by '2'.
x = 80

Simplifying
x = 80

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