Answer: 
Step-by-step explanation:
You need to remember the Distributive property:

And the multiplication of signs:

Therefore, applying the explained before, to simplify the expression
you need to multiply each term that are inside of the parentheses by -2, then you get:

Answer:
x = 1, y = 2
Step-by-step explanation:
Answer:
24 Guests
Step-by-step explanation:
3 x 8 = 24.
Can you add the picture to the question?