12x+9=-4x+7

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Solution for 12x+9=-4x+7 equation: 



12x+9=-4x+7

We move all terms to the left:

12x+9-(-4x+7)=0

We get rid of parentheses

12x+4x-7+9=0

We add all the numbers together, and all the variables

16x+2=0

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

16x=-2

x=-2/16

x=-1/8

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