SOLUTION: patty is three years younger than twice peachy's age.if peachy is x years old and the sum of their ages is 39,how old are they?

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Question 1062772: patty is three years younger than twice peachy's age.if peachy is x years old and the sum of their ages is 39,how old are they?
Answer by math_helper(2461) About Me  (Show Source):
You can put this solution on YOUR website!
Peachy is x years old.
Patty is therefore 2x-3 years old.
+%282x-3%29%2Bx+=+39+ (sum of their ages is 39)
++3x-3+=+39+
++3x+=+42+
+++x+=+14+ —> +2x-3+=+28-3+=+25+

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Ans: Peachy is +highlight%2814%29+ and Patty is highlight%2825%29+
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Check:
25+14 = 39 (ok)
2(14)-3 = 28-3 = 25 = Patty's age (ok, because we used this relationship to find Patty's age, this only double-checks our math)