## Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

$60+10y+10z$
Using $a(b+c)=ab+ac$ (or the Distributive Property), the given expression, $-10(-6-y-z) ,$ is equivalent to \begin{array}{l}\require{cancel} -10(-6)-10(-y)-10(-z) \\\\= 60+10y+10z .\end{array}