 
<translate> Lizzy: Milena tana 'yar shekara 7, kuma kakarta ta girme ta sau 9. Kakan Milena ya girmi kakarta da shekara biyu. Menene bambancin shekaru tsakanin Milena da kakanta? Ni: Hmmm, bari in yi tunani. Ina ganin wannan shi ne cikakken bayani: <eng> Lizzy: Milena is 7 years old, and her grandmother is 9 times older than her. Milena's grandfather is two years older than her grandmother. What is the age difference between Milena and her grandfather?.
Me: Hmmm, let me think. I think this is the detailed solution: 