SOLUTION: Can you please explain this solution. 2^9x-4= 32

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Question 95858: Can you please explain this solution.
2^9x-4= 32
Answer by robvandam(2) About Me  (Show Source):
You can put this solution on YOUR website!
to solve
2^9x-4=2^5
now compare
9x-4=5
9x=9
x=1