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6/2=21/m
We move all terms to the left:
6/2-(21/m)=0
Domain of the equation: m)!=0We add all the numbers together, and all the variables
m!=0/1
m!=0
m∈R
-(+21/m)+6/2=0
We add all the numbers together, and all the variables
-(+21/m)+3=0
We get rid of parentheses
-21/m+3=0
We multiply all the terms by the denominator
3*m-21=0
We add all the numbers together, and all the variables
3m-21=0
We move all terms containing m to the left, all other terms to the right
3m=21
m=21/3
m=7
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