Chapter 2 - Solving Equations - 2-2 Solving Two-Step Equations - Practice and Problem-Solving Exercises - Page 92: 49

c=70

We need to get the c alone, so we cancel out the addition by subtracting 9 on both sides. This leaves us with the equation $-14=c/-5$. We cancel out division using multiplication, so we multiply both sides by -5 to get that c=70. We plug 70 in for c and confirm that our answer is, indeed, correct.