7-8f=-6f-9

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Solution for 7-8f=-6f-9 equation: 



7-8f=-6f-9

We move all terms to the left:

7-8f-(-6f-9)=0

We get rid of parentheses

-8f+6f+9+7=0

We add all the numbers together, and all the variables

-2f+16=0

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

-2f=-16

f=-16/-2

f=+8

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