7f=f+9

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Solution for 7f=f+9 equation: 



7f=f+9

We move all terms to the left:

7f-(f+9)=0

We get rid of parentheses

7f-f-9=0

We add all the numbers together, and all the variables

6f-9=0

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

6f=9

f=9/6

f=1+1/2

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