3x+9x=6x+4

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Solution for 3x+9x=6x+4 equation: 



3x+9x=6x+4

We move all terms to the left:

3x+9x-(6x+4)=0

We add all the numbers together, and all the variables

12x-(6x+4)=0

We get rid of parentheses

12x-6x-4=0

We add all the numbers together, and all the variables

6x-4=0

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

6x=4

x=4/6

x=2/3

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