an=(n+4)2

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Solution for an=(n+4)2 equation: 


Simplifying
an = (n + 4) * 2

Reorder the terms:
an = (4 + n) * 2

Reorder the terms for easier multiplication:
an = 2(4 + n)
an = (4 * 2 + n * 2)
an = (8 + 2n)

Solving
an = 8 + 2n

Solving for variable 'a'.

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

Divide each side by 'n'.
a = 8n-1 + 2

Simplifying
a = 8n-1 + 2

Reorder the terms:
a = 2 + 8n-1

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