12=-4(2n+5)

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Solution for 12=-4(2n+5) equation: 



12=-4(2n+5)

We move all terms to the left:

12-(-4(2n+5))=0



We calculate terms in parentheses: -(-4(2n+5)), so:

-4(2n+5)

We multiply parentheses

-8n-20

Back to the equation:

-(-8n-20)



We get rid of parentheses

8n+20+12=0

We add all the numbers together, and all the variables

8n+32=0

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

8n=-32

n=-32/8

n=-4

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