20/4=10/f

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Solution for 20/4=10/f equation: 



20/4=10/f

We move all terms to the left:

20/4-(10/f)=0



Domain of the equation: f)!=0

f!=0/1

f!=0

f∈R



We add all the numbers together, and all the variables

-(+10/f)+20/4=0

We add all the numbers together, and all the variables

-(+10/f)+5=0

We get rid of parentheses

-10/f+5=0

We multiply all the terms by the denominator


5*f-10=0

We add all the numbers together, and all the variables

5f-10=0

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

5f=10

f=10/5

f=2

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