an=2n-4

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Solution for an=2n-4 equation: 


Simplifying
an = 2n + -4

Reorder the terms:
an = -4 + 2n

Solving
an = -4 + 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 = -4n-1 + 2

Simplifying
a = -4n-1 + 2

Reorder the terms:
a = 2 + -4n-1

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