SOLUTION: The sum of two numbers is 13. The larger number is 1 more than 3 times the smaller number. What are the numbers?

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Question 484771: The sum of two numbers is 13. The larger number is 1 more than 3 times the smaller number. What are the numbers?
Answer by Tatiana_Stebko(1539) About Me  (Show Source):
You can put this solution on YOUR website!
Let x is a smaller nunber, then 3x%2B1 is the lager number
Their sum is x%2B%283x%2B1%29=13
x%2B3x%2B1=13
4x=13-1
4x=12
x=12%2F4=3 the smaller number
the lager number is 3%2A3%2B1=10
Answer 3 and 10