9x+12=-7x-4

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



9x+12=-7x-4

We move all terms to the left:

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

We get rid of parentheses

9x+7x+4+12=0

We add all the numbers together, and all the variables

16x+16=0

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

16x=-16

x=-16/16

x=-1

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