-(-2x-12)=42

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Solution for -(-2x-12)=42 equation: 



-(-2x-12)=42

We move all terms to the left:

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

We get rid of parentheses

2x+12-42=0

We add all the numbers together, and all the variables

2x-30=0

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

2x=30

x=30/2

x=15

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