# How do you solve 4/(7x) = -12 ?

$x = - \frac{1}{21}$
$\frac{4}{7 x} = - 12 \iff \frac{7 x}{4} = - \frac{1}{12} \iff 7 x = - \frac{1}{3} \iff x = - \frac{1}{21}$