document.write( "Question 1055885: The sum of a brother's and sister's age is 57 years. if the brother is 5 years older than the sister, find their ages \n" ); document.write( "

Algebra.Com's Answer #671053 by ikleyn(52781) $\"\"$ $\"About$

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\n" ); document.write( "The sum of a brother's and sister's age is 57 years. if the brother is 5 years older than the sister, find their ages
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document.write( "B + S = 57,   (1)\r\n" );
document.write( "B - S =  5.   (2)\r\n" );
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document.write( "Add the equations (1) and (2). You will get\r\n" );
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document.write( "2B = 57 + 5 = 62.\r\n" );
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document.write( "Hence, B =  = 31.\r\n" );
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document.write( "Thus the brother's age is 31.\r\n" );
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document.write( "Then the sister is 31-5 = 26 years old.\r\n" );
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