Question

- kobby is 5 years younger than Nana

Four years later Nana will be twice as
old as kobby Find their present ages.
-​

Answer 1

Kobby is 1 and nana 6

Answer 2

Kobby is 1 and Nana is 6

Explanation:

lets mark Kobby's present age x, than Nana's present age would be x+5.

four years later Kobby's age would be x+4, and Nana's x+5+4, or 2(x+4).

so

x+5+4=2x+8

x-2x=8-5-4

-x=-1

x=1