Answer
$-19+9i$
Work Step by Step
Removing the grouping symbols and the combining the real parts and the imaginary parts, the given expression $
(-11+2i)-(8-7i)
,$ simplifies to
\begin{array}{l}\require{cancel}
-11+2i-8+7i
\\\\=
(-11-8)+(2i+7i)
\\\\=
-19+9i
.\end{array}