F(n)=5(n-3)

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Solution for F(n)=5(n-3) equation:



(F)=5(F-3)
We move all terms to the left:
(F)-(5(F-3))=0
We calculate terms in parentheses: -(5(F-3)), so:
5(F-3)
We multiply parentheses
5F-15
Back to the equation:
-(5F-15)
We get rid of parentheses
F-5F+15=0
We add all the numbers together, and all the variables
-4F+15=0
We move all terms containing F to the left, all other terms to the right
-4F=-15
F=-15/-4
F=3+3/4

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