document.write( "Question 936673: Mary is twice as old as Ann was when Mary was as old as Ann is now. Ann now is 57 years old. How old is Mary now? \n" ); document.write( "

Algebra.Com's Answer #570142 by TimothyLamb(4379) $\"\"$ $\"About$

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x = mary age now
\n" ); document.write( "y = ann age now
\n" ); document.write( "---
\n" ); document.write( "x = 2( y - (x - y) )
\n" ); document.write( "y = 57
\n" ); document.write( "---
\n" ); document.write( "x = 2(y - x + y)
\n" ); document.write( "x = 4y - 2x
\n" ); document.write( "3x = 4y
\n" ); document.write( "x = (4/3)y
\n" ); document.write( "x = (4/3)*57
\n" ); document.write( "x = 76
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "Mary is 76
\n" ); document.write( "---
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