David's bowliing score is 5 less than 3 times Aaron's score. the sum of their scores is 215. find the score of each student

Question

David's bowliing score is 5 less than 3 times Aaron's score. the sum of their scores is 215. find the score of each student

Answer 1

let x = Aaron's score

 

then David's score = 3x - 5

 

our equation becomes x + 3x - 5 = 215

 

combining, we get 4x = 220

 

solving, x = 55, and 215 - 55 = 160