F(-3)=7(9-x)

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Solution for F(-3)=7(9-x) equation:



(-3)=7(9-F)
We move all terms to the left:
(-3)-(7(9-F))=0
We add all the numbers together, and all the variables
-(7(-1F+9))+(-3)=0
We add all the numbers together, and all the variables
-(7(-1F+9))-3=0
We calculate terms in parentheses: -(7(-1F+9)), so:
7(-1F+9)
We multiply parentheses
-7F+63
Back to the equation:
-(-7F+63)
We get rid of parentheses
7F-63-3=0
We add all the numbers together, and all the variables
7F-66=0
We move all terms containing F to the left, all other terms to the right
7F=66
F=66/7
F=9+3/7

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