-f+8=-2f

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



-f+8=-2f

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

-1f+2f+8=0

We add all the numbers together, and all the variables

f+8=0

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

f=-8

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