document.write( "Question 533880: the sum of the ages of prashant and his brother is 15 and the difference is 3.find their ages. \n" ); document.write( "

Algebra.Com's Answer #351184 by josmiceli(19441) $\"\"$ $\"About$

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Let their ages be $\"a\"$ and $\"b\"$
\n" ); document.write( " $\"+a+%2B+b+=+15+\"$
\n" ); document.write( " $\"+a+-+b+=+3+\"$
\n" ); document.write( "-------------
\n" ); document.write( "add the equations
\n" ); document.write( " $\"+2a+=+18+\"$
\n" ); document.write( " $\"+a+=+9+\"$
\n" ); document.write( "and, since
\n" ); document.write( " $\"+a+%2B+b+=+15+\"$
\n" ); document.write( " $\"+b+=+6+\"$
\n" ); document.write( "Their ages are 6 and 9 \n" ); document.write( "

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