-f=-2f+4

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



-f=-2f+4

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-1f+2f-4=0

We add all the numbers together, and all the variables

f-4=0

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

f=4

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