Chapter 2 - Solving Equations - 2-3 Solving Multi-Step Equations - Practice and Problem-Solving Exercises - Page 98: 37

$z = \frac{1}{5}$

$\frac{11z}{16}$ + $\frac{7z}{8}$ = $\frac{5}{16}$ Multiply both sides by 16 in order to get rid of the denominators. We get: $11z$ +$ 14z = 5$ This becomes $25 z = 5$ Divide both sides by 25 to isolate $z.$ We get $z = \frac{1}{5}$