3=-12/s

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Solution for 3=-12/s equation: 



3=-12/s

We move all terms to the left:

3-(-12/s)=0



Domain of the equation: s)!=0

s!=0/1

s!=0

s∈R



We get rid of parentheses

12/s+3=0

We multiply all the terms by the denominator


3*s+12=0

We add all the numbers together, and all the variables

3s+12=0

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

3s=-12

s=-12/3

s=-4

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