document.write( "Question 378447: Aunt karen is eight years younger thank twice the age of Mary. Their ages add up to twenty-eight. Find the age of Aunt Karen and Mary. \n" ); document.write( "
Algebra.Com's Answer #268859 by sophxmai(62)![]() ![]() You can put this solution on YOUR website! Let k stand for Karen's age, and m stand for Mary's age.\r \n" ); document.write( "\n" ); document.write( "2m-8=k \n" ); document.write( "k+m=28\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Substitute k for k=2m-8 \n" ); document.write( "(2m-8)+m=28 \n" ); document.write( "3m-8=28 \n" ); document.write( "3m=36 \n" ); document.write( "m=12\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Substitute m for m=12 \n" ); document.write( "k+m=28 \n" ); document.write( "k+(12)=28 \n" ); document.write( "k=16\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Karen is 16 years old, Mary is 12 years old. \n" ); document.write( " |