2(m-9)=12

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Solution for 2(m-9)=12 equation: 



2(m-9)=12

We move all terms to the left:

2(m-9)-(12)=0

We multiply parentheses

2m-18-12=0

We add all the numbers together, and all the variables

2m-30=0

We move all terms containing m to the left, all other terms to the right

2m=30

m=30/2

m=15

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