SOLUTION: the problem is: 3^4x-5 = 9^7x
i forget whether or not the 3 and the 9 are the same base 10, or whether you need to use the change of base formula and I can't find an example lik
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Question 376321: the problem is: 3^4x-5 = 9^7x
i forget whether or not the 3 and the 9 are the same base 10, or whether you need to use the change of base formula and I can't find an example like this is my notes.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Start with the given equation.
Rewrite 9 as
Multiply the exponents.
Since the bases are equal, the exponents are equal.
Add to both sides.
Subtract from both sides.
Combine like terms on the left side.
Divide both sides by to isolate .
Reduce.
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Answer:
So the solution is
If you need more help, email me at jim_thompson5910@hotmail.com
Also, feel free to check out my tutoring website
Jim
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