Francos dad is three times his age. in 10 years, francos dad will be twice francos age plus 2. how old are franco and his dad now?

Let

Y be the age of Franco's dad.
X  Franco's age

Y = 3*X                           (1)
(Y +10) = 2*(X+10) +2            (2)

(3*X  +10) = 2*X +20 +2   

(3-2)X = 22 -10

X = 12 years old  (Franco)

Y = 3*12 = 36 years old (Franco's dad)

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