document.write( "Question 1013886: May is 15 years old. Five years ago, she was as old as her sister will be four years from now. How old is her sister? \n" ); document.write( "
Algebra.Com's Answer #630179 by fractalier(6550)\"\" \"About 
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Call her sister's age NOW, x.
\n" ); document.write( "Five years ago, May was 10. We can write
\n" ); document.write( "10 = x + 4
\n" ); document.write( "x = 6 years old
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