Question

Please help this is due tomorrow!!

angel is Eight years younger than his brother Alex together their total age in years is 30. select two equations of a system that can be solved to find both ages

x+y=30

x-y=30

x+y=8

x-y=8



How many years old is angel?

How many years old is Alex?

Answer 1

x+y=30 and x-y=8. Angel is 11 and Alex is 19

Explanation:

30÷2=15

8÷2=4

15-4=11

15+4=19

19+11=30

Answer 2

Angel is 8 years old and Alex is 30 years old x-y=30