12+2x=-4x+12-42

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Solution for 12+2x=-4x+12-42 equation: 



12+2x=-4x+12-42

We move all terms to the left:

12+2x-(-4x+12-42)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

2x+4x+30+12=0

We add all the numbers together, and all the variables

6x+42=0

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

6x=-42

x=-42/6

x=-7

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