SOLUTION: the difference between two numbers is 15. four times the smaller number plus twice the larger number is 120. what are the two numbers?

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Question 266: the difference between two numbers is 15. four times the smaller number plus twice the larger number is 120. what are the two numbers?
Answer by whenindoubt(13) About Me  (Show Source):
You can put this solution on YOUR website!
Given information:
x= smaller number
y= larger number
y-x=15
therefore y= x+15


4x + 2y = 120
4x + 2(x+15) = 120
4x + 2x + 30 = 120
6x + 30 = 120
6x = 90
x= 15
therefore


x = 15
y = 30