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-3=12/m
We move all terms to the left:
-3-(12/m)=0
Domain of the equation: m)!=0We add all the numbers together, and all the variables
m!=0/1
m!=0
m∈R
-(+12/m)-3=0
We get rid of parentheses
-12/m-3=0
We multiply all the terms by the denominator
-3*m-12=0
We add all the numbers together, and all the variables
-3m-12=0
We move all terms containing m to the left, all other terms to the right
-3m=12
m=12/-3
m=-4
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