n+4+n-5=0

Solution for n+4+n-5=0 equation:

Simplifying
n + 4 + n + -5 = 0

Reorder the terms:
4 + -5 + n + n = 0

Combine like terms: 4 + -5 = -1
-1 + n + n = 0

Combine like terms: n + n = 2n
-1 + 2n = 0

Solving
-1 + 2n = 0

Solving for variable 'n'.

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

Add '1' to each side of the equation.
-1 + 1 + 2n = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 2n = 0 + 1
2n = 0 + 1

Combine like terms: 0 + 1 = 1
2n = 1

Divide each side by '2'.
n = 0.5

Simplifying
n = 0.5