Question

solve the system by substitution.

$-4x - y = 17$

$4y = x$

answer attempt 1 out of 3

(□,□) submit answer

Explanation:

Step1: Substitute $x=4y$ into first equation

$-4(4y) - y = 17$

Step2: Simplify and solve for $y$

$-16y - y = 17$
$-17y = 17$
$y = \frac{17}{-17} = -1$

Step3: Substitute $y=-1$ into $x=4y$

$x = 4(-1) = -4$

Answer:

$(-4, -1)$