2f=9f+7

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Solution for 2f=9f+7 equation: 



2f=9f+7

We move all terms to the left:

2f-(9f+7)=0

We get rid of parentheses

2f-9f-7=0

We add all the numbers together, and all the variables

-7f-7=0

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

-7f=7

f=7/-7

f=-1

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