Problem using both types of substitutions

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shreddinglicks
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I've attached the work I have done. Can someone please point me in the right direction? I've tried the problem using both types of substitutions. I keep getting stuck regardless.
 

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I tried reading your attached file. I was not sure what the problem was or what form of the solution is expected.
 
shreddinglicks said:
I've attached the work I have done. Can someone please point me in the right direction? I've tried the problem using both types of substitutions. I keep getting stuck regardless.
Please start a new thread with your problem, using the problem template, which has a section for the problem statement and another section where you show what you've done.