Question

Solve for y: 20x + 4y= 28A) y = -20x + 28B) y = -5x + 7C) y = 20x + 28D) y = 5x + 7

Answer 1

Solve for y:

$\begin{gathered} 20x+4y=28 \\ 4y=28-20x \\ \frac{4y}{4}=\frac{28}{4}-\frac{20x}{4} \\ y=7-5x\text{ or} \\ y=-5x+7 \end{gathered}$

ANSWER:

B) y = - 5x + 7