0.3(x-12)=9

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Solution for 0.3(x-12)=9 equation: 



0.3(x-12)=9

We move all terms to the left:

0.3(x-12)-(9)=0

We multiply parentheses

0.3x-3.6-9=0

We add all the numbers together, and all the variables

0.3x-12.6=0

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

0.3x=12.6

x=12.6/0.3

x=42

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