3=-9/x

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Solution for 3=-9/x equation: 



3=-9/x

We move all terms to the left:

3-(-9/x)=0



Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R



We get rid of parentheses

9/x+3=0

We multiply all the terms by the denominator


3*x+9=0

We add all the numbers together, and all the variables

3x+9=0

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

3x=-9

x=-9/3

x=-3

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