Question

At a contest,every correct answer earns you 5 points and every incorrect answer will deduct 3 points. Jessica has a score of 66. If she answered 3 questions incorrectly, how many correct answers did she have?

Answer 1

15

Explanation:

66=5x-3y

x=# right

y=# wrong

y=3

66=5x-9

75=5x

x=15