[tex]A=\left \{ x\:\in\:\mathbb{Z}\:|\:-10 < x < 4 \: ; \: x\:\in\:M_{3}\right \}[/tex]
[tex] - 10 < x < 4 = > x \: \in \: ( - 10,4)[/tex]
[tex]x \: \in \: M_{3} = > x \: \in \: \left \{ -9,-6,-3 ,0,3\right \}[/tex]
[tex] = > A=\left \{ -9,-6,-3 ,0,3\right \}[/tex]
