F(x)=9-3x-x*2

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Solution for F(x)=9-3x-x*2 equation: 



(F)=9-3F-F*2

We move all terms to the left:

(F)-(9-3F-F*2)=0

We add all the numbers together, and all the variables

F-(-3F-F*2+9)=0

We get rid of parentheses

F+3F+F*2-9=0

We add all the numbers together, and all the variables

4F+F*2-9=0

Wy multiply elements

4F+2F-9=0

We add all the numbers together, and all the variables

6F-9=0

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

6F=9

F=9/6

F=1+1/2

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