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 #807901 by math_helper(2461)\"\" \"About 
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\n" ); document.write( "Algebraic solution:\r
\n" ); document.write( "\n" ); document.write( "Lisa's sister's age: x
\n" ); document.write( "Lisa's age: 2x\r
\n" ); document.write( "\n" ); document.write( "2x-x = 8
\n" ); document.write( "x = 8
\n" ); document.write( "(Lisa's sister is 8, Lisa is 16)
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