(10+x)+x+(x+5)=180

Solution for (10+x)+x+(x+5)=180 equation:

Simplifying
(10 + x) + x + (x + 5) = 180

Remove parenthesis around (10 + x)
10 + x + x + (x + 5) = 180

Reorder the terms:
10 + x + x + (5 + x) = 180

Remove parenthesis around (5 + x)
10 + x + x + 5 + x = 180

Reorder the terms:
10 + 5 + x + x + x = 180

Combine like terms: 10 + 5 = 15
15 + x + x + x = 180

Combine like terms: x + x = 2x
15 + 2x + x = 180

Combine like terms: 2x + x = 3x
15 + 3x = 180

Solving
15 + 3x = 180

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 3x = 180 + -15

Combine like terms: 15 + -15 = 0
0 + 3x = 180 + -15
3x = 180 + -15

Combine like terms: 180 + -15 = 165
3x = 165

Divide each side by '3'.
x = 55

Simplifying
x = 55