IDNStudy.com, ang platform na nag-uugnay ng mga tanong sa mga solusyon. Alamin ang mga detalyadong sagot mula sa mga bihasang miyembro ng aming komunidad na sumasaklaw sa iba't ibang paksa para sa lahat ng iyong pangangailangan.

Lebron is now 20 years older than his son. In 10 years, he will be twice as old as his son. How old are they?

Sagot :

let the son be x, and lebron be x+20.

in ten years, lebron would be x+20+10. there is also another given equation, which would mean that in ten years, he will also be 2(x+10), since he is twice the age of his son in ten years.

2(x+10)=x+20+10.
2x+20=x+30.
2x-x=-20+30.
x=10.

the son is ten, while lebron is 20. hope u understand xx