(2x-12)=9

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



(2x-12)=9

We move all terms to the left:

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

We get rid of parentheses

2x-12-9=0

We add all the numbers together, and all the variables

2x-21=0

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

2x=21

x=21/2

x=10+1/2

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