Chapter 2 - Solving Equations - 2-2 Solving Two-Step Equations - Practice and Problem-Solving Exercises - Page 91: 15

$b=-2$

We need to get the b alone. Thus, we cancel out the addition by subtracting 6 on both sides. This leaves us with the equation $ 4b=-8.$ In order to cancel out multiplication, we use division, so we divide both sides by 4 to get that $b=-2$. We plug -2 in for b and confirm that our answer is, indeed, correct.