-2=1+f

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Solution for -2=1+f equation: 



-2=1+f

We move all terms to the left:

-2-(1+f)=0

We add all the numbers together, and all the variables

-(f+1)-2=0

We get rid of parentheses

-f-1-2=0

We add all the numbers together, and all the variables

-1f-3=0

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

-f=3

f=3/-1

f=-3

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