F(n)=9(2)n-1

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Solution for F(n)=9(2)n-1 equation: 



(F)=9(2)F-1

We move all terms to the left:

(F)-(9(2)F-1)=0

We get rid of parentheses

F-92F+1=0

We add all the numbers together, and all the variables

-91F+1=0

We move all terms containing F to the left, all other terms to the right

-91F=-1

F=-1/-91

F=1/91

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