20f+(-8f-15)=12f-15f

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Solution for 20f+(-8f-15)=12f-15f equation: 



20f+(-8f-15)=12f-15f

We move all terms to the left:

20f+(-8f-15)-(12f-15f)=0

We add all the numbers together, and all the variables

20f+(-8f-15)-(-3f)=0

We get rid of parentheses

20f-8f+3f-15=0

We add all the numbers together, and all the variables

15f-15=0

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

15f=15

f=15/15

f=1

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