Answer:
X box: 30 units
PlayStation: 8 units
Step-by-step explanation:
x + p = 38
x = 5p - 10
x = number of X-Box
p = number of Play Station
then:
(5p-10) + p = 38
5p + p = 38 + 10
6p = 48
p = 48/6
p = 8
x = 5p - 10
x = 5*8 - 10
x = 40 - 10
x = 30
Check:
30 + 8 = 38