A(n)=1.4+(n-1)(3)

Solution for A(n)=1.4+(n-1)(3) equation:

Simplifying
A(n) = 1.4 + (n + -1)(3)

Multiply A * n
nA = 1.4 + (n + -1)(3)

Reorder the terms:
nA = 1.4 + (-1 + n)(3)

Reorder the terms for easier multiplication:
nA = 1.4 + 3(-1 + n)
nA = 1.4 + (-1 * 3 + n * 3)
nA = 1.4 + (-3 + 3n)

Combine like terms: 1.4 + -3 = -1.6
nA = -1.6 + 3n

Solving
nA = -1.6 + 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 = -1.6 + 3n + -3n

Combine like terms: 3n + -3n = 0
-3n + nA = -1.6 + 0
-3n + nA = -1.6

Reorder the terms:
1.6 + -3n + nA = -1.6 + 1.6

Combine like terms: -1.6 + 1.6 = 0.0
1.6 + -3n + nA = 0.0

The solution to this equation could not be determined.