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0.1(15+m)=31.5
We move all terms to the left:
0.1(15+m)-(31.5)=0
We add all the numbers together, and all the variables
0.1(m+15)-(31.5)=0
We add all the numbers together, and all the variables
0.1(m+15)-31.5=0
We multiply parentheses
0.1m+1.5-31.5=0
We add all the numbers together, and all the variables
0.1m-30=0
We move all terms containing m to the left, all other terms to the right
0.1m=30
m=30/0.1
m=300
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