2.8=2.8(f-7)

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Solution for 2.8=2.8(f-7) equation: 



2.8=2.8(f-7)

We move all terms to the left:

2.8-(2.8(f-7))=0



We calculate terms in parentheses: -(2.8(f-7)), so:

2.8(f-7)

We multiply parentheses

2.8f-19.6

Back to the equation:

-(2.8f-19.6)



We get rid of parentheses

-2.8f+19.6+2.8=0

We add all the numbers together, and all the variables

-2.8f+22.4=0

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

-2.8f=-22.4

f=-22.4/-2.8

f=+8

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