7f-4=7f+4+2f

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



7f-4=7f+4+2f

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

7f-9f-4-4=0

We add all the numbers together, and all the variables

-2f-8=0

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

-2f=8

f=8/-2

f=-4

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