102+(6+x)+(15+x)=180

Solution for 102+(6+x)+(15+x)=180 equation:

Simplifying
102 + (6 + x) + (15 + x) = 180

Remove parenthesis around (6 + x)
102 + 6 + x + (15 + x) = 180

Remove parenthesis around (15 + x)
102 + 6 + x + 15 + x = 180

Reorder the terms:
102 + 6 + 15 + x + x = 180

Combine like terms: 102 + 6 = 108
108 + 15 + x + x = 180

Combine like terms: 108 + 15 = 123
123 + x + x = 180

Combine like terms: x + x = 2x
123 + 2x = 180

Solving
123 + 2x = 180

Solving for variable 'x'.

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

Add '-123' to each side of the equation.
123 + -123 + 2x = 180 + -123

Combine like terms: 123 + -123 = 0
0 + 2x = 180 + -123
2x = 180 + -123

Combine like terms: 180 + -123 = 57
2x = 57

Divide each side by '2'.
x = 28.5

Simplifying
x = 28.5