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20-3(m-2)=8
We move all terms to the left:
20-3(m-2)-(8)=0
We add all the numbers together, and all the variables
-3(m-2)+12=0
We multiply parentheses
-3m+6+12=0
We add all the numbers together, and all the variables
-3m+18=0
We move all terms containing m to the left, all other terms to the right
-3m=-18
m=-18/-3
m=+6
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