12x+9=4x+9

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Solution for 12x+9=4x+9 equation: 



12x+9=4x+9

We move all terms to the left:

12x+9-(4x+9)=0

We get rid of parentheses

12x-4x-9+9=0

We add all the numbers together, and all the variables

8x=0

x=0/8

x=0

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