A(n)=-7.6+(n-1)(3)

Solution for A(n)=-7.6+(n-1)(3) equation:

Simplifying
A(n) = -7.6 + (n + -1)(3)

Multiply A * n
nA = -7.6 + (n + -1)(3)

Reorder the terms:
nA = -7.6 + (-1 + n)(3)

Reorder the terms for easier multiplication:
nA = -7.6 + 3(-1 + n)
nA = -7.6 + (-1 * 3 + n * 3)
nA = -7.6 + (-3 + 3n)

Combine like terms: -7.6 + -3 = -10.6
nA = -10.6 + 3n

Solving
nA = -10.6 + 3n

Solving for variable 'n'.

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

Add '-3n' to each side of the equation.
-3n + nA = -10.6 + 3n + -3n

Combine like terms: 3n + -3n = 0
-3n + nA = -10.6 + 0
-3n + nA = -10.6

Reorder the terms:
10.6 + -3n + nA = -10.6 + 10.6

Combine like terms: -10.6 + 10.6 = 0.0
10.6 + -3n + nA = 0.0

The solution to this equation could not be determined.