30=4x-3x-12x

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Solution for 30=4x-3x-12x equation: 



30=4x-3x-12x

We move all terms to the left:

30-(4x-3x-12x)=0

We add all the numbers together, and all the variables

-(-11x)+30=0

We get rid of parentheses

11x+30=0

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

11x=-30

x=-30/11

x=-2+8/11

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