SOLUTION: Reggie is three less than four times his daughter's age. Reggie is 69; how old is his daughter?

Question 320746: Reggie is three less than four times his daughter's age. Reggie is 69; how old is his daughter?
Answer by GreatDane(2) (Show Source): You can put this solution on YOUR website!
First, start by makings some "let" statements.
Let R = Reggie's Age.
Let D = Daughter's Age.
Reggie is 3 years less than 4 times his daughter.
R = 4D - 3
We know Reggie is 69, so we can sub 69 for Reggie's age.
69 = 4D - 3
Now solve for D. Start by adding 3 to each side.
69 + 3 = 4D - 3 + 3
72 = 4d
Divide both sides by 4.
18 = d
His daughter's age is 18.
Now she can register to vote.
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