-2=-2(f-10)

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Solution for -2=-2(f-10) equation: 



-2=-2(f-10)

We move all terms to the left:

-2-(-2(f-10))=0



We calculate terms in parentheses: -(-2(f-10)), so:

-2(f-10)

We multiply parentheses

-2f+20

Back to the equation:

-(-2f+20)



We get rid of parentheses

2f-20-2=0

We add all the numbers together, and all the variables

2f-22=0

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

2f=22

f=22/2

f=11

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