Chapter 1 - Foundations for Algebra - 1-9 Patterns, Equations, and Graphs - Practice and Problem-Solving Exercises - Page 66: 49

-14

First, recall that adding a negative is the same as subtraction. Thus, we obtain: $-8+(-6)=-8-6$ Second, we must remember that when a positive is subtracted from a negative, the negative becomes more negative. Thus, it follows: $-8-6=-14$