-7+3f=-f+9

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Solution for -7+3f=-f+9 equation: 



-7+3f=-f+9

We move all terms to the left:

-7+3f-(-f+9)=0

We add all the numbers together, and all the variables

3f-(-1f+9)-7=0

We get rid of parentheses

3f+1f-9-7=0

We add all the numbers together, and all the variables

4f-16=0

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

4f=16

f=16/4

f=4

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