Question 1186666
suppose your mother was 27 years old when you were born.
m = mom's age
then
(m-27) = your age

 Presently she is three times as old as you are.
m =  3(m-27)
m = 3m - 81
81 = 3m - m
81 = 2m
m = 81/2
m = 40.5, round it down,  Mom is 40, you are 13