a[n]=7n+4

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Solution for a[n]=7n+4 equation: 


Simplifying
a[n] = 7n + 4

Multiply a * n
an = 7n + 4

Reorder the terms:
an = 4 + 7n

Solving
an = 4 + 7n

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 + 7

Simplifying
a = 4n-1 + 7

Reorder the terms:
a = 7 + 4n-1

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