-9-x=30

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Solution for -9-x=30 equation: 



-9-x=30

We move all terms to the left:

-9-x-(30)=0

We add all the numbers together, and all the variables

-1x-39=0

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

-x=39

x=39/-1

x=-39

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