Question

Jessica and her sister have a combined age of 47. Jessica is 5 years older than her sister. How old is Jessica

Answer 1

Let the sister be x years old.
Then Jessica is x + 5 years old.
Their ages add to 47.

x + x + 5 = 47

2x + 5 = 47

2x = 42

x = 21

x + 5 = 26

Jessica is 26, and her sister is 21.