12=-2(2j+8)

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Solution for 12=-2(2j+8) equation: 



12=-2(2j+8)

We move all terms to the left:

12-(-2(2j+8))=0



We calculate terms in parentheses: -(-2(2j+8)), so:

-2(2j+8)

We multiply parentheses

-4j-16

Back to the equation:

-(-4j-16)



We get rid of parentheses

4j+16+12=0

We add all the numbers together, and all the variables

4j+28=0

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

4j=-28

j=-28/4

j=-7

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