document.write( "Question 1057508: Jim drove a total of 200 miles on a trip to visit his parents. The return route was 8 miles longer than the route he took on the way to his parents house. How many miles did Jim drive on the way to his parent’s house?
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Algebra.Com's Answer #672537 by ikleyn(52776) $\"\"$ $\"About$

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\n" ); document.write( "Jim drove a total of 200 miles on a trip to visit his parents. The return route was 8 miles longer than the route he took
\n" ); document.write( "on the way to his parents house. How many miles did Jim drive on the way to his parent’s house?
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\n" ); document.write( "\n" ); document.write( "If you are familiar with systems of linear equations, it might be useful/interesting to you to know another approach.\r
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document.write( "Let  \"x\" be the length of the way \"to there\" (in miles) and \"y\" be the length of the way back. Then\r\n" );
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document.write( "y + x = 200,\r\n" );
document.write( "y - x =   8.\r\n" );
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document.write( "Add the two equations (both sides). You will get\r\n" );
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document.write( "2y = 200+8  --->  2y = 208  --->  y =  = 104.\r\n" );
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document.write( "Then x = y - 8 = 104-8 = 96.\r\n" );
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document.write( "Answer.  96 miles \"to there\" and 104 miles back.\r\n" );
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