This question has three parts. Answer the parts in order. Part 1

Sam is 8 years younger than his brother Steve. He is also half as old as Steve.

Select two equations of a system that can be solved to find both ages.
Part 2

How many years old is Sam? (Use only the digits 0 – 9 to enter a number.)
Part 3

How many years old is Steve? (Use only the digits 0 – 9 to enter a number.)

this are the answeres of part one