document.write( "Question 381801: 2/3^x= 81/16 Please help solve. \n" ); document.write( "
Algebra.Com's Answer #270771 by stanbon(75887)\"\" \"About 
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2/3^x= 81/16
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\n" ); document.write( "(2/3)^x = (16/81)^(-1)
\n" ); document.write( "(2/3)^x = [(2/3)]^-4
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\n" ); document.write( "x = -4
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