SOLUTION: Christy is 3 years older than Jamie. �The sum of their ages is 23. �How old is each?

Question 694778: Christy is 3 years older than Jamie. �The sum of their ages is 23. �How old is each?
Found 2 solutions by Ave, stanbon:
Answer by Ave(106) (Show Source): You can put this solution on YOUR website!
Jamie = x
Christy = x+3
(x)+(x+3)= 23
2x+3=23
2x=20
x=10
Jamie =10
Christy =10+3=13
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Christy is 3 years older than Jamie. The sum of their ages is 23. How old is each?
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Equations:
c = j + 3
c + j = 23
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Substitute for "c" and solve for "j":
j+3 + j = 23
2j = 20
j = 10 yrs old (Jamie's age now)
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Solve for "c":
c = j + 3
c = 13 yrs old (Christy's age now)
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Cheers,
Stan H.
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