Answer:
A=8
B=6
C=14
Step-by-step explanation:
A+b+c=28
c+b=20
Substitute c+b for 20
A+20=28
A=28-20
c+a=22
Substitute a with 8
c+8=22
c=22-8
c=14
To get b, we substitute a with 8 and b with 14
8+b+14=28
22+b=28
b=28-22
b=6
