Respuesta :

Answer:

K = 3 D

( K − 4 ) = 5 ( D − 4 )

 k-4=5d-20

5D-k=20-4

5D-3D=16

2D=15

D=8

therefor Daniel has to be 8

Answer:

8 years

Daniel is 8 years old now.

please see the attached picture for full solution..

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