An=5+2(n-1)

Solution for An=5+2(n-1) equation:

Simplifying
An = 5 + 2(n + -1)

Reorder the terms:
nA = 5 + 2(-1 + n)
nA = 5 + (-1 * 2 + n * 2)
nA = 5 + (-2 + 2n)

Combine like terms: 5 + -2 = 3
nA = 3 + 2n

Solving
nA = 3 + 2n

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.
-2n + nA = 3 + 2n + -2n

Combine like terms: 2n + -2n = 0
-2n + nA = 3 + 0
-2n + nA = 3

Reorder the terms:
-3 + -2n + nA = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + -2n + nA = 0

The solution to this equation could not be determined.