F(5-x)=7x-9

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Solution for F(5-x)=7x-9 equation:



(5-F)=7F-9
We move all terms to the left:
(5-F)-(7F-9)=0
We add all the numbers together, and all the variables
(-1F+5)-(7F-9)=0
We get rid of parentheses
-1F-7F+5+9=0
We add all the numbers together, and all the variables
-8F+14=0
We move all terms containing F to the left, all other terms to the right
-8F=-14
F=-14/-8
F=1+3/4

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