document.write( "Question 935221: if 4200 is 20% off what would the
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Algebra.Com's Answer #568384 by MathLover1(20855)\"\" \"About 
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\n" ); document.write( "let the original price be \"x\"\r
\n" ); document.write( "\n" ); document.write( "if \"4200\" is \"20\"%=\"0.20\" off the final price, means \"0.20x=4200\"\r
\n" ); document.write( "\n" ); document.write( "the original price was \"x=4200%2F0.20\"=>\"x=21000\"\r
\n" ); document.write( "\n" ); document.write( "the final price be \"x-0.20x=21000-4200=16800\"
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