document.write( "Question 1107105: Nancy is 5 years younger than her brother Stan. Last year she was half as old as he was. How old is each of them now? \n" ); document.write( "

Algebra.Com's Answer #722091 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+a+\"$ = Nancy's age now
\n" ); document.write( "Let $\"+b+\"$ = Stan's age now
\n" ); document.write( "------------------------------
\n" ); document.write( "(1) $\"+a+=+b+-+5+\"$
\n" ); document.write( "(2) $\"+a+-+1+=+%281%2F2%29%2A%28+b+-+1+%29+\"$
\n" ); document.write( "------------------------------
\n" ); document.write( "Substitute (1) into (2)
\n" ); document.write( "(2) $\"+b+-+5+-+1+=+%281%2F2%29%2A%28+b+-+1+%29+\"$
\n" ); document.write( "(2) $\"+b+-+6+=+%281%2F2%29%2A%28+b+-+1+%29+\"$
\n" ); document.write( "(2) $\"+2%2A%28+b+-+6+%29+=+b+-+1+\"$
\n" ); document.write( "(2) $\"+2b+-+12+=+b+-+1+\"$
\n" ); document.write( "(2) $\"+b+=+11+\"$
\n" ); document.write( "and
\n" ); document.write( "(1) $\"+a+=+b+-+5+\"$
\n" ); document.write( "(1) $\"+a+=+11+-+5+\"$
\n" ); document.write( "(1) $\"+a+=+6+\"$
\n" ); document.write( "--------------------
\n" ); document.write( "Nancy is 6
\n" ); document.write( "Stan is 11\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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