an=19-7(n-1)

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Solution for an=19-7(n-1) equation: 


Simplifying
an = 19 + -7(n + -1)

Reorder the terms:
an = 19 + -7(-1 + n)
an = 19 + (-1 * -7 + n * -7)
an = 19 + (7 + -7n)

Combine like terms: 19 + 7 = 26
an = 26 + -7n

Solving
an = 26 + -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 = 26n-1 + -7

Simplifying
a = 26n-1 + -7

Reorder the terms:
a = -7 + 26n-1

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