An=15+5(n-1)

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Solution for An=15+5(n-1) equation:


Simplifying
An = 15 + 5(n + -1)

Reorder the terms:
nA = 15 + 5(-1 + n)
nA = 15 + (-1 * 5 + n * 5)
nA = 15 + (-5 + 5n)

Combine like terms: 15 + -5 = 10
nA = 10 + 5n

Solving
nA = 10 + 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
-5n + nA = 10 + 5n + -5n

Combine like terms: 5n + -5n = 0
-5n + nA = 10 + 0
-5n + nA = 10

Reorder the terms:
-10 + -5n + nA = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + -5n + nA = 0

The solution to this equation could not be determined.

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