Use elimination method to get -8
It has zero solutions because when u subtract z to the other side u get nothing which equals to 2
Answer:
24
Step-by-step explanation:
x-y=8
x=8+y
(8+y) +y =12
2y=4
y=2
x+2=12
x=10
y=2
x=10
10+2= 12
10-2 =8
10*2=20 2*2=4
20+4=24
