12x+9=4x-3

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Solution for 12x+9=4x-3 equation: 



12x+9=4x-3

We move all terms to the left:

12x+9-(4x-3)=0

We get rid of parentheses

12x-4x+3+9=0

We add all the numbers together, and all the variables

8x+12=0

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

8x=-12

x=-12/8

x=-1+1/2

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