document.write( "Question 467414: how do I solve y = 4^(-x) \n" ); document.write( "
Algebra.Com's Answer #320715 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Solving for x:\r
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\n" ); document.write( "\n" ); document.write( "\"y=4%5E%28-x%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"ln%28y%29=ln%284%5E%28-x%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"ln%28y%29=-x%2Aln%284%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"-ln%28y%29%2Fln%284%29=x\"\r
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\n" ); document.write( "\n" ); document.write( "\"-log%284%2C%28y%29%29=x\"\r
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\n" ); document.write( "\n" ); document.write( "\"x=-log%284%2C%28y%29%29\"
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