3x*4=9x-12

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



3x*4=9x-12

We move all terms to the left:

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

Wy multiply elements

12x-(9x-12)=0

We get rid of parentheses

12x-9x+12=0

We add all the numbers together, and all the variables

3x+12=0

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

3x=-12

x=-12/3

x=-4

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