(N-1)+n+(n+1)=93

Solution for (N-1)+n+(n+1)=93 equation:

Simplifying
(N + -1) + n + (n + 1) = 93

Reorder the terms:
(-1 + N) + n + (n + 1) = 93

Remove parenthesis around (-1 + N)
-1 + N + n + (n + 1) = 93

Reorder the terms:
-1 + N + n + (1 + n) = 93

Remove parenthesis around (1 + n)
-1 + N + n + 1 + n = 93

Reorder the terms:
-1 + 1 + N + n + n = 93

Combine like terms: -1 + 1 = 0
0 + N + n + n = 93
N + n + n = 93

Combine like terms: n + n = 2n
N + 2n = 93

Solving
N + 2n = 93

Solving for variable 'N'.

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

Add '-2n' to each side of the equation.
N + 2n + -2n = 93 + -2n

Combine like terms: 2n + -2n = 0
N + 0 = 93 + -2n
N = 93 + -2n

Simplifying
N = 93 + -2n