Answer:
Hope this helps
Step-by-step explanation:
z = 0.143
2³z+9 = 8²z+1
1. Subtract 1 from both sides
2³z+8 = 8²z
2. Solve exponents
8z+8 = 64z
3. Subtract 8z from 64z
8 = 64z-8z
8 = 56z
4. Divide 8 by 56 in order to isolate z
8/56 = z
0.143 ≈ z
