Answer
$(-1.5,8)$
Work Step by Step
The midpoint $M$ of the line segment from $P_1(x_1,y_1)$ to $P_2(x_2,y_2)$ is: $(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$.
$M=(\frac{-6+3}{2},\frac{5+11}{2})=(-1.5,8)$.
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