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

$5+5i$
Removing the grouping symbols and then adding the real parts and the imaginary parts, the given expression, $(-2+6i)-(-7+i) ,$ simplifies to \begin{array}{l}\require{cancel} -2+6i+7-i \\\\= (-2+7)+(6i-i) \\\\= 5+5i .\end{array}