Chapter 2 - Solving Equations - 2-5 Literal Equations and Formulas - Practice and Problem-Solving Exercises - Page 112: 12

$y=4-2x$ (x solutions listed below)

We first isolate y by subtracting by 4x on both sides to get that $2y=8-4x$. We now divide by 2 on both sides to isolate y and get that: $y=4-2x$. We then plug in the different values of x: $y=4-2(-2)=8 \\\\ y=4-2(1)=2 \\\\ y=4-2(3)=-2$