Question 234636
If Leah is 6 years older than sue and john is 5 years older than Leah and the total of their ages is 41. Then how old is sue? 
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Equations:
L + S + J = 41
S = L - 6
J = L + 5
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Substitute and solve for "L"
L + (L-6) + (L+5) = 41
3L = 42
L = 14 (Leah's age)
S = L-6 = 8 (Sue's age)
J = L+5 = 19 (John's age)
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Cheers,
Stan H.