n+(n-1)=5

Solution for n+(n-1)=5 equation:

Simplifying
n + (n + -1) = 5

Reorder the terms:
n + (-1 + n) = 5

Remove parenthesis around (-1 + n)
n + -1 + n = 5

Reorder the terms:
-1 + n + n = 5

Combine like terms: n + n = 2n
-1 + 2n = 5

Solving
-1 + 2n = 5

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 = 5 + 1

Combine like terms: -1 + 1 = 0
0 + 2n = 5 + 1
2n = 5 + 1

Combine like terms: 5 + 1 = 6
2n = 6

Divide each side by '2'.
n = 3

Simplifying
n = 3