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21/2m=550
We move all terms to the left:
21/2m-(550)=0
Domain of the equation: 2m!=0We multiply all the terms by the denominator
m!=0/2
m!=0
m∈R
-550*2m+21=0
Wy multiply elements
-1100m+21=0
We move all terms containing m to the left, all other terms to the right
-1100m=-21
m=-21/-1100
m=21/1100
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