document.write( "Question 1041921: A man travels 100km at a speed of x km/hr. He finds that he could have saved 2.5hrs if he had increased his speed by 2km/hr. Find x.\r
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Algebra.Com's Answer #656831 by Edwin McCravy(20060) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "Your equation would be correct if you would place \r\n" );
document.write( "parentheses correctly. This is your reasoning,\r\n" );
document.write( "using \r\n" );
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document.write( "Not this:\r\n" );
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document.write( "100/x - 2.5 = 100/x+2\r\n" );
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document.write( "But this:\r\n" );
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document.write( "100/x - 2.5 = 100/(x+2)\r\n" );
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document.write( "When typing algebra all on 1 line, if a\r\n" );
document.write( "numerator or a denominator contains more\r\n" );
document.write( "than just 1 number, or just 1 letter, you\r\n" );
document.write( "must type a left parenthesis \"(\" to indicate\r\n" );
document.write( "where the numerator or denominator starts,\r\n" );
document.write( "and a right parenthesis \")\" to indicate where\r\n" );
document.write( "it ends.\r\n" );
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document.write( "Edwin

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