Answer
$(\frac{4}{3},\frac{16}{3})$
Work Step by Step
$x-y = -4$ Equation$(1)$
$y=4x$ Equation$(2)$
Substituting $y=4x$ in Equation$(1)$, we get
$x-y = -4$
$x-4x= -4$
$-3x = -4$
$x= \frac{-4}{-3}$
$x= \frac{4}{3}$
Substituting $x$ value in Equation$(2)$, we get
$y=4x$
$y=4 \times \frac{4}{3}$
$y=\frac{16}{3}$
Solution : $(\frac{4}{3},\frac{16}{3})$