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-8n-28=-5(n+8)
We move all terms to the left:
-8n-28-(-5(n+8))=0
We calculate terms in parentheses: -(-5(n+8)), so:We get rid of parentheses
-5(n+8)
We multiply parentheses
-5n-40
Back to the equation:
-(-5n-40)
-8n+5n+40-28=0
We add all the numbers together, and all the variables
-3n+12=0
We move all terms containing n to the left, all other terms to the right
-3n=-12
n=-12/-3
n=+4
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