document.write( "Question 1061083: Jack is 4 times as old as Lucy. 9 years from now the sum of their age will be 53. How old are they?
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Algebra.Com's Answer #676012 by Cromlix(4381)\"\" \"About 
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Hi there,
\n" ); document.write( "Jack is 4 times as old as Lucy.
\n" ); document.write( "J = 4L .........Eq(1)
\n" ); document.write( "9 years from now the sum of their age will be 53.
\n" ); document.write( "(J + 9) + (L + 9) = 53........Eq(2)
\n" ); document.write( "Substitute 4L from Eq(1) for J in Eq(2)
\n" ); document.write( "4L + 9 + L + 9 = 53
\n" ); document.write( "Collect like terms
\n" ); document.write( "4L + L = 53 - 18
\n" ); document.write( "5L = 35
\n" ); document.write( "L = 7
\n" ); document.write( "Lucy is 7 years old
\n" ); document.write( "Jack is 28 years old.
\n" ); document.write( "Hope this helps :-)
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