7=-2(4n+4.5)

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Solution for 7=-2(4n+4.5) equation: 



7=-2(4n+4.5)

We move all terms to the left:

7-(-2(4n+4.5))=0



We calculate terms in parentheses: -(-2(4n+4.5)), so:

-2(4n+4.5)

We multiply parentheses

-8n-9

Back to the equation:

-(-8n-9)



We get rid of parentheses

8n+9+7=0

We add all the numbers together, and all the variables

8n+16=0

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

8n=-16

n=-16/8

n=-2

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