document.write( "Question 815431: Mrs. Childs is forty-three years old and her son Darren is thirteen. How many years ago was Mrs. Childs seven times as old as Darren? \n" ); document.write( "

Algebra.Com's Answer #490955 by TimothyLamb(4379) $\"\"$ $\"About$

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c = 43
\n" ); document.write( "d = 13
\n" ); document.write( "(c - y) = 7(d - y)
\n" ); document.write( "---
\n" ); document.write( "(c - y) = 7(d - y)
\n" ); document.write( "c - y = 7d - 7y
\n" ); document.write( "43 - y = 7(13) - 7y
\n" ); document.write( "43 - y = 91 - 7y
\n" ); document.write( "6y = 48
\n" ); document.write( "---
\n" ); document.write( "Answer:
\n" ); document.write( "y = 8
\n" ); document.write( "8 years ago
\n" ); document.write( "---
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