document.write( "Question 173616: Claire, who is six years older then her sister Amy, isnow three times as old as Amy was four years ago. How old are Claire and Amy now? \n" ); document.write( "

Algebra.Com's Answer #128465 by nerdybill(7384) $\"\"$ $\"About$

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\n" ); document.write( "Let x = Amy's age
\n" ); document.write( "then from \"Claire, who is six years older then her sister Amy\"
\n" ); document.write( "x+6 = Claire's age
\n" ); document.write( ".
\n" ); document.write( "From:\" is now three times as old as Amy was four years ago.\"
\n" ); document.write( "x+6 = 3(x-4)
\n" ); document.write( "x+6 = 3x-12
\n" ); document.write( "6 = 2x-12
\n" ); document.write( "18 = 2x
\n" ); document.write( "9 years = x (Amy's age)
\n" ); document.write( ".
\n" ); document.write( "Claire's age:
\n" ); document.write( "x+6 = 9+6 = 15 years \n" ); document.write( "

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