2x+x+6=-9

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Solution for 2x+x+6=-9 equation: 



2x+x+6=-9

We move all terms to the left:

2x+x+6-(-9)=0

We add all the numbers together, and all the variables

3x+15=0

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

3x=-15

x=-15/3

x=-5

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