12x=4x-9

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Solution for 12x=4x-9 equation: 



12x=4x-9

We move all terms to the left:

12x-(4x-9)=0

We get rid of parentheses

12x-4x+9=0

We add all the numbers together, and all the variables

8x+9=0

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

8x=-9

x=-9/8

x=-1+1/8

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