Chapter 1 - Section 1.4 - Solving Linear Equations - Exercise Set - Page 52: 89

Solution set:$ \qquad\{ -5 \}$

Graphing with desmos.com/calculator (see image) graph the LHS function and the RHS function in the same window. We find the intersection point to be $(-5,-2),$ meaning that for x=$-5,$ the LHS equals the RHS, meaning that x=$-5$ is the solution of the equation.