an=-11+(n-1)-4

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Solution for an=-11+(n-1)-4 equation: 


Simplifying
an = -11 + (n + -1) + -4

Reorder the terms:
an = -11 + (-1 + n) + -4

Remove parenthesis around (-1 + n)
an = -11 + -1 + n + -4

Reorder the terms:
an = -11 + -1 + -4 + n

Combine like terms: -11 + -1 = -12
an = -12 + -4 + n

Combine like terms: -12 + -4 = -16
an = -16 + n

Solving
an = -16 + n

Solving for variable 'a'.

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

Divide each side by 'n'.
a = -16n-1 + 1

Simplifying
a = -16n-1 + 1

Reorder the terms:
a = 1 + -16n-1

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