N*2-N-90=0e

Solution for N*2-N-90=0e equation:

Simplifying
N * 2 + -1N + -90 = 0e

Reorder the terms for easier multiplication:
2N + -1N + -90 = 0e

Reorder the terms:
-90 + 2N + -1N = 0e

Combine like terms: 2N + -1N = 1N
-90 + 1N = 0e

Anything times zero is zero.
-90 + 1N = 0e

Solving
-90 + 1N = 0

Solving for variable 'N'.

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

Add '90' to each side of the equation.
-90 + 90 + 1N = 0 + 90

Combine like terms: -90 + 90 = 0
0 + 1N = 0 + 90
1N = 0 + 90

Combine like terms: 0 + 90 = 90
1N = 90

Divide each side by '1'.
N = 90

Simplifying
N = 90