Chapter 2 - Solving Equations - 2-4 Solving Equations with Variables on Both Sides - Practice and Problem-Solving Exercises - Page 105: 17

$c = -1\frac{3}{4}$

$-3c - 12 = -5 +c$ Subtract $c$ from both sides. $-3c-c-12 = -5$ $-4c - 12= -5$ Add $12$ to both sides to isolate $-4c.$ $-4c = -5 + 12$ $-4c = 7$ Divide both sides by $-4.$ $c = \frac{-7}{4}$ $c = -1\frac{3}{4}$