7f-2-9f=f+4

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Solution for 7f-2-9f=f+4 equation: 



7f-2-9f=f+4

We move all terms to the left:

7f-2-9f-(f+4)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

-2f-f-4-2=0

We add all the numbers together, and all the variables

-3f-6=0

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

-3f=6

f=6/-3

f=-2

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