18+7n-12+5n=

Solution for 18+7n-12+5n= equation:

Simplifying
18 + 7n + -12 + 5n = 0

Reorder the terms:
18 + -12 + 7n + 5n = 0

Combine like terms: 18 + -12 = 6
6 + 7n + 5n = 0

Combine like terms: 7n + 5n = 12n
6 + 12n = 0

Solving
6 + 12n = 0

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 + 12n = 0 + -6

Combine like terms: 6 + -6 = 0
0 + 12n = 0 + -6
12n = 0 + -6

Combine like terms: 0 + -6 = -6
12n = -6

Divide each side by '12'.
n = -0.5

Simplifying
n = -0.5