document.write( "Question 1118458: The difference in the ages of two boys is 4 years. The sum of their ages is 14.Find their ages. \n" ); document.write( "

Algebra.Com's Answer #733769 by ikleyn(52782) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "One solution\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "x + y = 14\r\n" );
document.write( "x - y =  4\r\n" );
document.write( "-----------------------Add the two equations. You will get\r\n" );
document.write( "\r\n" );
document.write( "2x = 14 + 4 = 18  ====>  x = 18/2 = 9.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Answer.  9 years and 14-9 = 5 years.\r\n" );
document.write( "

\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Another way\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "x + (x-4) = 14\r\n" );
document.write( "\r\n" );
document.write( "2x - 4 = 14\r\n" );
document.write( "\r\n" );
document.write( "2x = 14 + 4 = 18  ====>  x = 18/2 = 9,   and you get the same answer.  \r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );