Question

solve using substitution.
$y = -x + 1$
$y = -2x - 5$
$\left(\square, \square\
ight)$

Explanation:

Step1: Substitute y from first equation

$-x + 1 = -2x - 5$

Step2: Solve for x

$-x + 2x = -5 -1$
$x = -6$

Step3: Find y using x=-6

$y = -(-6) +1 = 6 +1 =7$

Answer:

(-6, 7)