document.write( "Question 379067: jim is 3 years older than his sister kim theirs ages add up to 13
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document.write( " how old is jim and how old is kim \n" );
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Algebra.Com's Answer #269207 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! jim is 3 years older than his sister kim; their ages add up to 13 \n" ); document.write( "------------------- \n" ); document.write( "Equations: \n" ); document.write( "j + k = 13 \n" ); document.write( "j = k +3 \n" ); document.write( "----- \n" ); document.write( "Substitute for \"j\" and solve for \"k\": \n" ); document.write( "k+3 + k = 13 \n" ); document.write( "2k = 10 \n" ); document.write( "k = 5 yrs old (Kim's age now) \n" ); document.write( "----- \n" ); document.write( "Since j = k+3, Jim's age = 8 yrs \n" ); document.write( "=================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |