3x+396=9

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Solution for 3x+396=9 equation: 



3x+396=9

We move all terms to the left:

3x+396-(9)=0

We add all the numbers together, and all the variables

3x+387=0

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

3x=-387

x=-387/3

x=-129

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