document.write( "Question 172287: Three-sevenths of a number is 21.Find the number. \n" ); document.write( "
Algebra.Com's Answer #127247 by Mathtut(3670)\"\" \"About 
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\"%283%2F7%29x=21\"where x is the unknown
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\n" ); document.write( "\"3x=147\"cross multiply
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\n" ); document.write( "\"highlight%28x=49%29\"
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