Question

A classmate is 22 years younger than your instructor. Write an equation that will determine your classmate’s age (y) if given your instructor’s age (x). Use this equation to determine your classmate’s age.

Answer 1

Hey there, we are given quite a lot of information in this problem. First of all, let's make an equation.

y = x - 22

where y = student's age

where x = instructor's age

this equation is correct because x(instructor) - 22 will yield the student's age (y).

If the instructor were 44 years old, the student would be 22 years old.

y = 44 - 22

y = 22

If the instructor were 66 years old, the student would be 44 years old.

y = 66 - 22

y = 44