Question 390084
Sharon's mom is eight more than twice her age. 
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m = 2s+8
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Her father is 3 years older than her mother. 
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f = m+3
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If the three family members have lived a total of 94 years, how old are each family member?
s + m + f = 94
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Substitute for "s" and for "f" and solve for "m":
(m-8)/2 + m + m+3 = 94
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m-8 + 2m + 2m+6 = 188
5m = 190
m = 38 (mother's age)
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f = m+3 = 41 (father's age)
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s = (m-8)/2 = 15 (sharon's age)
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Cheers,
Stan H.