Question

solve using substitution.
$y = -10x - 2$
$y = -9x - 1$
$\left(\square, \square\
ight)$

Explanation:

Step1: Substitute y from first equation

Since both equations equal \( y \), set them equal: \( -10x - 2 = -9x - 1 \)

Step2: Solve for x

Add \( 10x \) to both sides: \( -2 = x - 1 \)
Add 1 to both sides: \( x = -1 \)

Step3: Find y using x=-1

Substitute \( x = -1 \) into \( y = -10x - 2 \):
\( y = -10(-1) - 2 = 10 - 2 = 8 \)

Answer:

\((-1, 8)\)