SOLUTION: mary is half as old as mark the sum of their ages is 51. How old are they no

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Question 5310: mary is half as old as mark the sum of their ages is 51. How old are they no
Found 2 solutions by longjonsilver, alconerajaydee@yahoo.com:
Answer by longjonsilver(2297) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = Rolex present age
Let y = Rose present age

(x-7) = 6(y-7)
x-7 = 6y - 42
x-6y = -35

(x+1) = 2(y+1)
x+1 = 2y+2
x-2y = 1

So, we have 2 equations:

x-6y = -35
x-2y = 1

Subtract these, to give -4y = -36 --> y = 9

x-2y = 1
x-2(9) = 1
x-18 = 1
x = 19

So present ages are: Rolex = 19 and Rose = 9

jon.

Answer by alconerajaydee@yahoo.com(1) About Me  (Show Source):