Answer:
z = 8.2
Step-by-step explanation:
6.7z = 5.2z + 12.3
combine like terms by subtracting 5.2z from both sides
1.5z = 12.3
divide by 1.5
8.2
5.2z+12.3=6.7z
12.3=6.7z-5.2z
12.3=1.5z
z=8.2
