document.write( "Question 1178591: Lisa’s age is twice her sisters age. The difference between their ages is eight. How old are Lisa and her sister \n" ); document.write( "
Algebra.Com's Answer #807900 by mananth(16946)\"\" \"About 
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Lisa’s age (l) is twice her sisters(s) age.\r
\n" ); document.write( "\n" ); document.write( "l=2s\r
\n" ); document.write( "\n" ); document.write( "The difference between their ages is eight.\r
\n" ); document.write( "\n" ); document.write( "l-s= 8\r
\n" ); document.write( "\n" ); document.write( "substitute l \r
\n" ); document.write( "\n" ); document.write( "2s-s=8 \r
\n" ); document.write( "\n" ); document.write( "s=8
\n" ); document.write( "l=2s=16\r
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