130/2=390/x

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Solution for 130/2=390/x equation: 



130/2=390/x

We move all terms to the left:

130/2-(390/x)=0



Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(+390/x)+130/2=0

We add all the numbers together, and all the variables

-(+390/x)+65=0

We get rid of parentheses

-390/x+65=0

We multiply all the terms by the denominator


65*x-390=0

We add all the numbers together, and all the variables

65x-390=0

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

65x=390

x=390/65

x=6

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