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-3=15/x

We move all terms to the left:

-3-(15/x)=0

Domain of the equation: x)!=0We add all the numbers together, and all the variables

x!=0/1

x!=0

x∈R

-(+15/x)-3=0

We get rid of parentheses

-15/x-3=0

We multiply all the terms by the denominator

-3*x-15=0

We add all the numbers together, and all the variables

-3x-15=0

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

-3x=15

x=15/-3

x=-5

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