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4=f-808/30
We move all terms to the left:
4-(f-808/30)=0
We add all the numbers together, and all the variables
-(+f-808/30)+4=0
We get rid of parentheses
-f+4+808/30=0
We multiply all the terms by the denominator
-f*30+808+4*30=0
We add all the numbers together, and all the variables
-f*30+928=0
Wy multiply elements
-30f+928=0
We move all terms containing f to the left, all other terms to the right
-30f=-928
f=-928/-30
f=30+14/15
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