x-31+x+(x+43)=180

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Solution for x-31+x+(x+43)=180 equation: 


Simplifying
x + -31 + x + (x + 43) = 180

Reorder the terms:
x + -31 + x + (43 + x) = 180

Remove parenthesis around (43 + x)
x + -31 + x + 43 + x = 180

Reorder the terms:
-31 + 43 + x + x + x = 180

Combine like terms: -31 + 43 = 12
12 + x + x + x = 180

Combine like terms: x + x = 2x
12 + 2x + x = 180

Combine like terms: 2x + x = 3x
12 + 3x = 180

Solving
12 + 3x = 180

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 3x = 180 + -12

Combine like terms: 12 + -12 = 0
0 + 3x = 180 + -12
3x = 180 + -12

Combine like terms: 180 + -12 = 168
3x = 168

Divide each side by '3'.
x = 56

Simplifying
x = 56

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