30=-6x-x+9

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Solution for 30=-6x-x+9 equation: 



30=-6x-x+9

We move all terms to the left:

30-(-6x-x+9)=0

We add all the numbers together, and all the variables

-(-7x+9)+30=0

We get rid of parentheses

7x-9+30=0

We add all the numbers together, and all the variables

7x+21=0

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

7x=-21

x=-21/7

x=-3

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