30-18=-12x

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Solution for 30-18=-12x equation: 



30-18=-12x

We move all terms to the left:

30-18-(-12x)=0

We add all the numbers together, and all the variables

-(-12x)+12=0

We get rid of parentheses

12x+12=0

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

12x=-12

x=-12/12

x=-1

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