Answer
-3
Work Step by Step
$\frac{(-1-2)(-3^{2})}{-6-3}=\frac{(-(1+2))\times(-(3^{2}))}{-(6+3)}=\frac{(-3)\times(-(9))}{-9}=\frac{(-3)\times(-9)}{-9}=\frac{27}{-9}=-\frac{27}{9}=-3$
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