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5-5^k/5^-8=5^3
We move all terms to the left:
5-5^k/5^-8-(5^3)=0
We add all the numbers together, and all the variables
-5^k/5^-128=0
We multiply all the terms by the denominator
-5^k-128*5^=0
We add all the numbers together, and all the variables
-5^k=0
k=0/1
k=0
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