## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

$n=-6$
Use the rule $\frac{a}{c}=\frac{b}{d} \longrightarrow ad=bc$, more popularly known as cross-multiplication, to obtain: $3(8) = 4(-n) \\24=-4n$ Divide $-4$ to both sides: $\frac{24}{-4} = \frac{-4n}{-4} \\-6=n$