Question

solve using substitution.
-8x + 9y = -12
y = 4
(\square, \square)
submit

Explanation:

Step1: Substitute \( y = 4 \) into the first equation

We have the equation \(-8x + 9y = -12\). Substitute \( y = 4 \) into it: \(-8x + 9\times4 = -12\)

Step2: Simplify and solve for \( x \)

First, calculate \( 9\times4 = 36 \), so the equation becomes \(-8x + 36 = -12\). Subtract 36 from both sides: \(-8x = -12 - 36\), which simplifies to \(-8x = -48\). Then divide both sides by \(-8\): \( x=\frac{-48}{-8}=6 \)

Answer:

\((6, 4)\)