Question

4 solve the system of equations by substitution:
$x = -2$
$3x - 2y = -18$

Explanation:

Step1: Substitute $x=-2$ into the second equation

$3(-2) - 2y = -18$

Step2: Simplify the left-hand side

$-6 - 2y = -18$

Step3: Isolate the term with $y$

$-2y = -18 + 6$
$-2y = -12$

Step4: Solve for $y$

$y = \frac{-12}{-2}$

Answer:

$x=-2$, $y=6$