2x=12+-30-4x

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Solution for 2x=12+-30-4x equation: 



2x=12+-30-4x

We move all terms to the left:

2x-(12+-30-4x)=0

We add all the numbers together, and all the variables

2x-(-4x-18)=0

We get rid of parentheses

2x+4x+18=0

We add all the numbers together, and all the variables

6x+18=0

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

6x=-18

x=-18/6

x=-3

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