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2m-(-7)=15
We move all terms to the left:
2m-(-7)-(15)=0
determiningTheFunctionDomain 2m-15-(-7)=0
We add all the numbers together, and all the variables
2m-8=0
We move all terms containing m to the left, all other terms to the right
2m=8
m=8/2
m=4
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