2x+4=-2x-12

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



2x+4=-2x-12

We move all terms to the left:

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

We get rid of parentheses

2x+2x+12+4=0

We add all the numbers together, and all the variables

4x+16=0

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

4x=-16

x=-16/4

x=-4

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