#### Answer

n=-5

#### Work Step by Step

$\frac{n}{5}=\frac{2b+4}{6}$
$n\times6=5(2n+4)$
Expand: $n\times6=10n+20$
Subtract 10n from both sides: $n\times6-10n=10n+20-10n$
Simplify: $-4n=20$
Divide both sides by -4: $\frac{-4n}{-4}=\frac{20}{-4}$
Simplify: $n=-5$