SOLUTION: word problem- A student averages 84 on five tests. If the student received grades of 84, 82, 81, and 79 on the first four exams, what grade did the student receive on the fifth ex

Algebra ->  Equations -> SOLUTION: word problem- A student averages 84 on five tests. If the student received grades of 84, 82, 81, and 79 on the first four exams, what grade did the student receive on the fifth ex      Log On


   

Question 221418: word problem- A student averages 84 on five tests. If the student received grades of 84, 82, 81, and 79 on the first four exams, what grade did the student receive on the fifth exam?
I have no idea how to go about solving this.
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
(84+82+81+79+x)/5=84
326+x=420
x=94