20+(8-15)=3(4f-5)

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Solution for 20+(8-15)=3(4f-5) equation: 



20+(8-15)=3(4f-5)

We move all terms to the left:

20+(8-15)-(3(4f-5))=0

We add all the numbers together, and all the variables

-(3(4f-5))+20+(-7)=0

We add all the numbers together, and all the variables

-(3(4f-5))+13=0



We calculate terms in parentheses: -(3(4f-5)), so:

3(4f-5)

We multiply parentheses

12f-15

Back to the equation:

-(12f-15)



We get rid of parentheses

-12f+15+13=0

We add all the numbers together, and all the variables

-12f+28=0

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

-12f=-28

f=-28/-12

f=2+1/3

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