Chapter 2 - Equations, Inequalities, and Problem Solving - 2.3 Formulas - 2.3 Exercise Set - Page 100: 17

$m=65-H$

$\bf{\text{Solution Outline:}}$ To solve the given equation, $ H=65-m $ for $ m ,$ use the properties of equality to isolate the variable. $\bf{\text{Solution Details:}}$ Using the properties of equality to isolate the variable, the equation above is equivalent to \begin{array}{l}\require{cancel} H=65-m \\\\ H+m-H=65-m+m-H \\\\ m=65-H .\end{array}