Answer:
=4x6−x3+x−3
Step-by-step explanation:
Answer: x = -3
set them equal to each other and reverse pemdas as shown in my image
5x + 2 must be equal to 17. Subtract to from both sides, then divide both sides by 5 and x = 3. 3y - 6 must equal 21. Add 6 to both sides, then divide both sides by 3, and y = 9.
He will have to order 7 pizzas
27 x 1/4 = 6.75
27 guests need 6.75 pizzas
1/4 would be left