n+1n+2n+3=120

Solution for n+1n+2n+3=120 equation:

Simplifying
n + 1n + 2n + 3 = 120

Reorder the terms:
3 + n + 1n + 2n = 120

Combine like terms: n + 1n = 2n
3 + 2n + 2n = 120

Combine like terms: 2n + 2n = 4n
3 + 4n = 120

Solving
3 + 4n = 120

Solving for variable 'n'.

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

Add '-3' to each side of the equation.
3 + -3 + 4n = 120 + -3

Combine like terms: 3 + -3 = 0
0 + 4n = 120 + -3
4n = 120 + -3

Combine like terms: 120 + -3 = 117
4n = 117

Divide each side by '4'.
n = 29.25

Simplifying
n = 29.25