n+2n+4=42

Solution for n+2n+4=42 equation:

Simplifying
n + 2n + 4 = 42

Reorder the terms:
4 + n + 2n = 42

Combine like terms: n + 2n = 3n
4 + 3n = 42

Solving
4 + 3n = 42

Solving for variable 'n'.

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

Add '-4' to each side of the equation.
4 + -4 + 3n = 42 + -4

Combine like terms: 4 + -4 = 0
0 + 3n = 42 + -4
3n = 42 + -4

Combine like terms: 42 + -4 = 38
3n = 38

Divide each side by '3'.
n = 12.66666667

Simplifying
n = 12.66666667