document.write( "Question 279375: I was five times as old as my sister five years ago, and I am three times older than her now. How old am I? \n" ); document.write( "

Algebra.Com's Answer #203145 by scott8148(6628) $\"\"$ $\"About$

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then ___ x - 5 = 5 (s - 5) ___ x = 5s - 20\r
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\n" ); document.write( "\n" ); document.write( "now ___ x = 3s\r
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\n" ); document.write( "\n" ); document.write( "substituting ___ 3s = 5s - 20 ___ s = 10\r
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\n" ); document.write( "\n" ); document.write( "substituting ___ x = 3(10) = 30 \n" ); document.write( "

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