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m+2.8=1.3m
We move all terms to the left:
m+2.8-(1.3m)=0
We add all the numbers together, and all the variables
m-(+1.3m)+2.8=0
We get rid of parentheses
m-1.3m+2.8=0
We add all the numbers together, and all the variables
-0.3m+2.8=0
We move all terms containing m to the left, all other terms to the right
-0.3m=-2.8
m=-2.8/-0.3
m=9+0.1/0.3
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