2x+3x+4x=-81

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Solution for 2x+3x+4x=-81 equation: 



2x+3x+4x=-81

We move all terms to the left:

2x+3x+4x-(-81)=0

We add all the numbers together, and all the variables

9x+81=0

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

9x=-81

x=-81/9

x=-9

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