document.write( "Question 667756: A reduction of 20% in the price of salt enables a purchase to buy 2.5 kg more for $160.find the original price per kg of salt.\r
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Algebra.Com's Answer #415145 by josmiceli(19441)\"\" \"About 
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Let \"+x+\" = the original price/kg
\n" ); document.write( "given:
\n" ); document.write( "\"+x+-+.2x+=+160%2F2.5+\"
\n" ); document.write( "\"+.8x+=+64+\"
\n" ); document.write( "\"+x+=+80+\"
\n" ); document.write( "The original price is $80/kg
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