Respuesta :

Answer: The daughter is 5 and the father is 25.

Step-by-step explanation:

f = father's age

d = daughter's age

f = d + 25

f + 10 = 2(d+10)

f + 10 = 2d + 20

f = 2d + 10

(Substitution)

d + 25 = 2d + 20

d = 5

f = 30

Hope it helps <3