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