an=-3+(n-1)-5

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Solution for an=-3+(n-1)-5 equation: 


Simplifying
an = -3 + (n + -1) + -5

Reorder the terms:
an = -3 + (-1 + n) + -5

Remove parenthesis around (-1 + n)
an = -3 + -1 + n + -5

Reorder the terms:
an = -3 + -1 + -5 + n

Combine like terms: -3 + -1 = -4
an = -4 + -5 + n

Combine like terms: -4 + -5 = -9
an = -9 + n

Solving
an = -9 + 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 = -9n-1 + 1

Simplifying
a = -9n-1 + 1

Reorder the terms:
a = 1 + -9n-1

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