-3x-9-5=7

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Solution for -3x-9-5=7 equation: 



-3x-9-5=7

We move all terms to the left:

-3x-9-5-(7)=0

We add all the numbers together, and all the variables

-3x-21=0

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

-3x=21

x=21/-3

x=-7

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