Respuesta :

Step-by-step explanation:

a.

If x=7, y=23-7 = 16

If y=4, x=23-4 = 19

If x=11, y=23-11 = 12

If y=18, x=23-18 = 5

If x=14, y=23-14 = 9

b.

x+y = 23

Answer:

16, 19,12,5,9

Step-by-step explanation:

7+16=23

19+4=23

11+12=23

5+18=23

14+9=23

x=7,19,11,5,14

y=16,4,12,18,9