The answers to that would be x=-2
Imagine what x is quantity of stools. So
3x+120=4x
x=120
120 stools in cafeteria
120 chairs in cafeteria
120+120=240
There 240 people can sit in this cafeteria
Answer:
10
Step-by-step explanation:
x³=1000
x=3√1000
x=10
Answer:
here you go
Step-by-step explanation:
35+a+b+c=270
35+a=90
a+b=180
35+90+c=180
Answer:

n ≈ 3
Step-by-step explanation:
9n-2<7+20
