 
 <prompt> ```In ten years, I go dey twice my brother age. The total of our ages go be 45 years old. How old I be now?``` <response>: ```Make X my age now.
In ten years, I go dey X+10 years old.
In ten years, my brother go dey (X+10)*1/2 years old.
In ten years, (X+10) + (X+10)*1/2 = 45.
So (X+10)*3/2 = 45.
X+10 = 45 * 2/3 = 30.
X = 30 - 10 = 20 years old.

The final answer: 20.``` 