Betty had to pay a total of $76 for a bike rental to bike along the beach for some hours. She was also charged for a one-time $20 service fee. How many hours did she go biking if she gets charged $8 an hour? (Let X be the variable)

9 hours

Step-by-step explanation:

set it up 8 dollars an hour, hour is the variable it will be x and it will equal 76

so it should look something like this: 8x=76

you have to isolate x so you take 8 and divided 76 by 8

and then your answer should be 9.