Answer
$-1+3i$
Work Step by Step
(Recall, we must distribute the negative to everything in the second set of parenthesis.)
Adding the real terms together and the imaginary terms together, we obtain:
$(7-2i)-(6-4i)+(-2+i)$
=$7-2i-6+4i-2+i$
=$(7-6-2)+(-2i+4i+i)$
=$-1+3i$
