F(x)=-5x+20/7

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Solution for F(x)=-5x+20/7 equation: 



(F)=-5F+20/7

We move all terms to the left:

(F)-(-5F+20/7)=0

We get rid of parentheses

F+5F-20/7=0

We multiply all the terms by the denominator


F*7+5F*7-20=0

Wy multiply elements

7F+35F-20=0

We add all the numbers together, and all the variables

42F-20=0

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

42F=20

F=20/42

F=10/21

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