6x=9+12

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Solution for 6x=9+12 equation: 



6x=9+12

We move all terms to the left:

6x-(9+12)=0

We add all the numbers together, and all the variables

6x-21=0

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

6x=21

x=21/6

x=3+1/2

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