F(x)=(x-20)

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Solution for F(x)=(x-20) equation: 



(F)=(F-20)

We move all terms to the left:

(F)-((F-20))=0



We calculate terms in parentheses: -((F-20)), so:

(F-20)

We get rid of parentheses

F-20

Back to the equation:

-(F-20)



We get rid of parentheses

F-F+20=0

We add all the numbers together, and all the variables

20!=0

There is no solution for this equation

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