30+2x=9-12x

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Solution for 30+2x=9-12x equation: 



30+2x=9-12x

We move all terms to the left:

30+2x-(9-12x)=0

We add all the numbers together, and all the variables

2x-(-12x+9)+30=0

We get rid of parentheses

2x+12x-9+30=0

We add all the numbers together, and all the variables

14x+21=0

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

14x=-21

x=-21/14

x=-1+1/2

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