-2x-12=2(4x+9)

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Solution for -2x-12=2(4x+9) equation: 



-2x-12=2(4x+9)

We move all terms to the left:

-2x-12-(2(4x+9))=0



We calculate terms in parentheses: -(2(4x+9)), so:

2(4x+9)

We multiply parentheses

8x+18

Back to the equation:

-(8x+18)



We get rid of parentheses

-2x-8x-18-12=0

We add all the numbers together, and all the variables

-10x-30=0

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

-10x=30

x=30/-10

x=-3

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