12x+5x=-9x

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Solution for 12x+5x=-9x equation: 



12x+5x=-9x

We move all terms to the left:

12x+5x-(-9x)=0

We add all the numbers together, and all the variables

17x-(-9x)=0

We get rid of parentheses

17x+9x=0

We add all the numbers together, and all the variables

26x=0

x=0/26

x=0

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