Question

9z - 6 + 72 = 162 - 6
Choose 1 answer:
А
No solutions
B
Exactly one solution
Infinitely many solutions

Answer 1

Answer: Exactly One Solution

Step-by-step explanation: All you have to do is evaluate the problem.

9z - 6 + 72 = 162 - 6  

9z - 6 + 72 = 156

9z + 66 = 156

9z = 90

z = 10