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m+21/8=9
We move all terms to the left:
m+21/8-(9)=0
determiningTheFunctionDomain m-9+21/8=0
We multiply all the terms by the denominator
m*8+21-9*8=0
We add all the numbers together, and all the variables
m*8-51=0
Wy multiply elements
8m-51=0
We move all terms containing m to the left, all other terms to the right
8m=51
m=51/8
m=6+3/8
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