It should be 9. I hope this helps. If it's not 9 then can u please give me a list of your answers to choose from.
The smallest number of seats that both theatres can have us 60
6x−12+2x=3+8x−15
Simplify:
6x+−12+2x=3+8x+−15
(6x+2x)+(−12)=(8x)+(3+−15)(Combine Like Terms)
8x+−12=8x+−12
8x−12=8x−12
Subtract 8x from both sides.
8x−12−8x=8x−12−8x
−12=−12
Add 12 to both sides.
−12+12=−12+12
0=0
The real numbers are the only solution we can have.
That's false.
Let's see an instance:
10% of 300=30
20% of 100=20
It doesn't work here so it's false
