Answer:
60 seats
Step-by-step explanation:
90 ÷ 3 = 30
30 × 2 = 60
x=-1
4x-16=-20
Get x to one side by subtracting it.
-16=-20-4x
Add the 20 on both sides.
-16+20=-4x
Simplify
4=-4x
4/-4=-4x/-4
-1=x
45.89
This is what is the answer