Respuesta :

gmany

Answer:

7

Step-by-step explanation:

Use PEMDAS:

P Parentheses first

E Exponents

MD Multiplication and Division

AS Addition and Subtraction

[tex]6:(-3)-(-9)[/tex]           first - division

[tex]=-2+9[/tex]          use commutative property a + b = b + a

[tex]=9+(-2)=9-2=7[/tex]