SOLUTION: Thirty-one times the sum of two numbers is 2,790. The larger number is five times the smaller number. What are the numbers?

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Question 3335: Thirty-one times the sum of two numbers is 2,790. The larger number is five times the smaller number. What are the numbers?
Answer by FearlessSG13(3) About Me  (Show Source):
You can put this solution on YOUR website!
31(x+y)=2,790
let x be larger number
x=5y
substitute x
31(5y+y)=2,790
31(6y)=2,790
divide both sides by 31
6y=2,790/31
6y=90
divide both sides by 6
y=15