-2f-1=-8+f+4f

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Solution for -2f-1=-8+f+4f equation: 



-2f-1=-8+f+4f

We move all terms to the left:

-2f-1-(-8+f+4f)=0

We add all the numbers together, and all the variables

-2f-(5f-8)-1=0

We get rid of parentheses

-2f-5f+8-1=0

We add all the numbers together, and all the variables

-7f+7=0

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

-7f=-7

f=-7/-7

f=1

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