SOLUTION: the age of two friends are consecutive whole numbers, if the sum of their ages is 25 what is the age of the younger friend?

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Question 1138179: the age of two friends are consecutive whole numbers, if the sum of their ages is 25 what is the age of the younger friend?
Answer by Theo(13342) About Me  (Show Source):
You can put this solution on YOUR website!
let the number be x and x + 1.

if the sume of their ages is 25, then x + x + 1 = 25.

combine like terms to get 2x + 1 = 25

subtract 1 frm both sides of this equation to get 2x = 24

solve for x to get x = 12

their ages are 12 and 13.

the sum of their ages is 25.

solution looks good.

the age of the younger friend is 12.