(x)+(x-5)+(x+8)=180

Solution for (x)+(x-5)+(x+8)=180 equation:

Simplifying
(x) + (x + -5) + (x + 8) = 180
x + (x + -5) + (x + 8) = 180

Reorder the terms:
x + (-5 + x) + (x + 8) = 180

Remove parenthesis around (-5 + x)
x + -5 + x + (x + 8) = 180

Reorder the terms:
x + -5 + x + (8 + x) = 180

Remove parenthesis around (8 + x)
x + -5 + x + 8 + x = 180

Reorder the terms:
-5 + 8 + x + x + x = 180

Combine like terms: -5 + 8 = 3
3 + x + x + x = 180

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

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

Solving
3 + 3x = 180

Solving for variable 'x'.

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

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

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

Combine like terms: 180 + -3 = 177
3x = 177

Divide each side by '3'.
x = 59

Simplifying
x = 59