Question

If i was born in 1984 how old would i be in 2013

Answer 1

29 years old is the age.

Answer 2

Take
2013
-
1984
------------
29
Or let x represent the age that you will be in 2013
x+1984=2013
Subtract 1984 to each side
x+1984-1984=2013-1984
x=29 years old. As a result, if you were born in 1984, you will be 29 years old in 2013. Hope it help!