8f-7=1+9f

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Solution for 8f-7=1+9f equation: 



8f-7=1+9f

We move all terms to the left:

8f-7-(1+9f)=0

We add all the numbers together, and all the variables

8f-(9f+1)-7=0

We get rid of parentheses

8f-9f-1-7=0

We add all the numbers together, and all the variables

-1f-8=0

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

-f=8

f=8/-1

f=-8

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