SOLUTION: the sum of two numbers is 42 the sum of two times a number plus a number is 57 What are the two numbers.

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Question 3562: the sum of two numbers is 42
the sum of two times a number plus a number is 57
What are the two numbers.
Answer by kiru_khandelwal(79) About Me  (Show Source):
You can put this solution on YOUR website!
Let the 2 numbers be x and y
Since sum of two numbers is 42
=> x+y=42...........eq(1)
Since sum of two times a number plus a number is 57
=> 2x+y = 57.....eq(2)
From eq(1)
x = 42 - y
Substituting the value of x in eq(2)
=> 2(42-y) + y = 57
=> 84 -2y + y = 57
=> 84 -y = 57
=> y = 84-57 = 27
So y = 27 and x = 42 - 27 = 15