document.write( "Question 130650: Solve for x: \"e%5E%283x%2B1%29=1%2F%28e%5Ex-2%29\" \n" ); document.write( "
Algebra.Com's Answer #95406 by jim_thompson5910(35256)\"\" \"About 
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\"e%5E%283x%2B1%29=1%2F%28e%5E%28x-2%29%29\" Start with the given function\r
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\n" ); document.write( "\n" ); document.write( "\"e%2Ae%5E%283x%29=1%2F%28e%5E%28x-2%29%29\" Break up \"e%5E%283x%2B1%29\" to get \"e%5E%283x%29%2Ae%5E1=e%2Ae%5E%283x%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"e%2Ae%5E%283x%29=1%2F%28e%5Ex%2Fe%5E2%29\" Break up \"e%5E%28x-2%29\" to get \"e%5E%28x%29%2Ae%5E%28-2%29=e%5Ex%2Fe%5E2\"\r
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\n" ); document.write( "\n" ); document.write( "\"e%2Ae%5E%283x%29=e%5E2%2Fe%5Ex\" Flip the fraction on the right side\r
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\n" ); document.write( "\n" ); document.write( "\"e%28e%5Ex%29%5E3=e%5E2%2Fe%5Ex\" Rewrite \"e%5E%283x%29\" to get \"%28e%5Ex%29%5E3\"\r
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\n" ); document.write( "\n" ); document.write( "Now let \"u=e%5Ex\"\r
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\n" ); document.write( "\n" ); document.write( "\"e%2Au%5E3=e%5E2%2Fu\" Plug in \"u=e%5Ex\" \r
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\n" ); document.write( "\n" ); document.write( "\"e%2Au%5E3%2Au=e%5E2\" Multiply both sides by \"u\"\r
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\n" ); document.write( "\n" ); document.write( "\"e%2Au%5E4=e%5E2\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"u%5E4=e%5E2%2Fe\" Divide both sides by \"e\"\r
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\n" ); document.write( "\n" ); document.write( "\"u%5E4=e\" Reduce\r
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\n" ); document.write( "\n" ); document.write( "\"%28e%5Ex%29%5E4=e\" Now plug in \"u=e%5Ex\"\r
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\n" ); document.write( "\n" ); document.write( "\"e%5E%284x%29=e\" Multiply\r
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\n" ); document.write( "\n" ); document.write( "\"e%5E%284x%29=e%5E1\" Rewrite \"e\" as \"e%5E1\"\r
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\n" ); document.write( "\n" ); document.write( "Since the bases are equal, the exponents are equal\r
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\n" ); document.write( "\n" ); document.write( "So \"4x=1\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=1%2F4\" Divide both sides by 4 to isolate x\r
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\n" ); document.write( "\n" ); document.write( "Answer: \r
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\n" ); document.write( "\n" ); document.write( "So our solution is \r
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\n" ); document.write( "\n" ); document.write( "\"x=1%2F4\"
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