Problema Solution
Luis is 7 years older than Haley. In 2 years the sum of their ages will be 79. How old is Luis now?
Answer provided by our tutors
Let
x = the present age of Luis
In 2 years Luis will be x+2 years old.
y = the present age of Haley
In 2 years Haley will be y+2 years old.
x = y + 7
(x + 2) + (y + 2) = 79
........
click here to see the system of equations solved for x and y
........
x = 41 years
y = 34 years
Luis is 41 years old now.