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(-8.2)m=-5
We move all terms to the left:
(-8.2)m-(-5)=0
We add all the numbers together, and all the variables
(-8.2)m+5=0
We multiply parentheses
-8.2m+5=0
We move all terms containing m to the left, all other terms to the right
-8.2m=-5
m=-5/-8.2
m=5/8.2
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