SOLUTION: the average of 5 students is 83. The average of first 2 student is 86. What is the avergae of other 3 students?

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Question 483551: the average of 5 students is 83. The average of first 2 student is 86. What is the avergae of other 3 students?
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
Let x is the average of other 3 students
3x%2B2%2A86=5%2A83
3x%2B172=415
3x=415-172
3x=243
x=243%2F3
x=81