SOLUTION: One number is 4 more than twice another. The sum of the numbers is 13. Find the two numbers.

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Question 591449: One number is 4 more than twice another. The sum of the numbers is 13. Find the two numbers.
Answer by llorton(14) About Me  (Show Source):
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a = the first number
b = the second number
b = 2*a + 4
a + b = 13
a + (2*a + 4) = 13
a + 2*a + 4 = 13
3*a + 4 = 13
3*a + 4 - 4 = 13 - 4
3*a = 9
3*a/3 = 9/3
a = 3
b = 2*3 + 4
b = 6 + 4 = 10
a + b = 3 + 10 = 13
The two numbers are 3 and 10.