12+4x=9-3x

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



12+4x=9-3x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

4x+3x-9+12=0

We add all the numbers together, and all the variables

7x+3=0

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

7x=-3

x=-3/7

x=-3/7

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