Deepak is 10 years old, and his brother is 7 years old. In how many years time will their total age be 41.

Answer 1

10+x + 7+x = 41
2x + 17 = 41
2x = 24
x = 12

check:

22+19 = 41

Answer 2

Thank you so much Steve. :)

Answer 3

but why the 2x 17?