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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