document.write( "Question 1205847: Chairs are arranged in the hall into 18 short rows and 7 long rows. Each long row has 18 more chairs than each short row. 1/2 of the chairs are arranged into long rows. 3/7 of the chairs are arranged into short rows. The remaining chairs are stacked in a corner.\r
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Algebra.Com's Answer #842917 by Edwin McCravy(20060) $\"\"$ $\"About$

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document.write( "x = no. of chairs in a short row.\r\n" );
document.write( "18x = no. of chairs in all 18 short rows\r\n" );
document.write( "x+18 = no. of chairs in each long row.\r\n" );
document.write( "7(x+18) = 7x+126 = no. of chairs in all 7 long rows.\r\n" );
document.write( "y = no. of chairs stacked.\r\n" );
document.write( "Total no. of chairs = 18x+7x+126+y = 25x+y+126\r\n" );
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document.write( "Subtract the two equations:\r\n" );
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document.write( ", substitute in 11x+y=126\r\n" );
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document.write( "11(9)+y=126\r\n" );
document.write( "99+y=126\r\n" );
document.write( "y=27\r\n" );
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document.write( "9 chairs in each short row and 27 chairs stacked.\r\n" );
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document.write( "(a) \r\n" );
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document.write( "(b) 7x+126 = 7(9)+126 = 189 in all 7 long rows.\r\n" );
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document.write( "Edwin

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