a(n)=-11+(n-1)7

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Solution for a(n)=-11+(n-1)7 equation: 


Simplifying
a(n) = -11 + (n + -1) * 7

Multiply a * n
an = -11 + (n + -1) * 7

Reorder the terms:
an = -11 + (-1 + n) * 7

Reorder the terms for easier multiplication:
an = -11 + 7(-1 + n)
an = -11 + (-1 * 7 + n * 7)
an = -11 + (-7 + 7n)

Combine like terms: -11 + -7 = -18
an = -18 + 7n

Solving
an = -18 + 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 = -18n-1 + 7

Simplifying
a = -18n-1 + 7

Reorder the terms:
a = 7 + -18n-1

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