-120... I would be easier if you used a scientific calculator
Answer: 24
Step-by-step explanation:
[Solve brackets first]
[tex](-7--9)\\-7+9 = 2[/tex]
[Perform the multiplication]
[tex]8[/tex] x [tex]2 = 16[/tex]
[Finally do the Addition]
[tex]16 + 8 = 24[/tex]
General Rule:
Brackets Indices Division Multiplication Addition Subtraction
[tex]Negative + Negative = Positive \\Negative + Positive = Negative[/tex]
