a(n)=7(7-1)+-15

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Solution for a(n)=7(7-1)+-15 equation: 


Simplifying
a(n) = 7(7 + -1) + -15

Multiply a * n
an = 7(7 + -1) + -15

Combine like terms: 7 + -1 = 6
an = 7(6) + -15

Multiply 7 * 6
an = 42 + -15

Combine like terms: 42 + -15 = 27
an = 27

Solving
an = 27

Solving for variable 'a'.

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

Divide each side by 'n'.
a = 27n-1

Simplifying
a = 27n-1

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