an=3n+n

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Solution for an=3n+n equation: 


Simplifying
an = 3n + n

Combine like terms: 3n + n = 4n
an = 4n

Solving
an = 4n

Solving for variable 'a'.

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

Divide each side by 'n'.
a = 4

Simplifying
a = 4

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