Question 1093630
two years ago, the age of david's father id thrice of her age. If david's father is x years old this year, what is the age of david, in term of x, after five years.
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Equation:
f-2 = 2(d-2)
f-2 = 2d-4
2d = f+2
d = (1/2)f+1
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After 5 years David is d+5::
d+5 = (1/2)f+6
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Cheers,
Stan H.
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