Answer
$-3a+1.9b$
Work Step by Step
We first group like terms to ease simplification. We will then combine like terms to simplify the expression:
$3.2a-1.4b-6.2a+3.3b$
=$3.2a-6.2a-1.4b+3.3b$
=$(3.2a-6.2a)+(-1.4b+3.3b)$
=$(-3.0a)+(-1.4b+3.3b)$
=$(-3.0a)+(1.9b)$
=$-3a+1.9b$