n+2n+(n+6)=26

Solution for n+2n+(n+6)=26 equation:

Simplifying
n + 2n + (n + 6) = 26

Reorder the terms:
n + 2n + (6 + n) = 26

Remove parenthesis around (6 + n)
n + 2n + 6 + n = 26

Reorder the terms:
6 + n + 2n + n = 26

Combine like terms: n + 2n = 3n
6 + 3n + n = 26

Combine like terms: 3n + n = 4n
6 + 4n = 26

Solving
6 + 4n = 26

Solving for variable 'n'.

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

Add '-6' to each side of the equation.
6 + -6 + 4n = 26 + -6

Combine like terms: 6 + -6 = 0
0 + 4n = 26 + -6
4n = 26 + -6

Combine like terms: 26 + -6 = 20
4n = 20

Divide each side by '4'.
n = 5

Simplifying
n = 5