document.write( "Question 170650: Claire, who is six years older than her sister Amy, is now three times as old as Amy was four years ago.
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document.write( "How old are Claire and Amy now?\r
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document.write( "Please show work if possible \n" );
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Algebra.Com's Answer #125983 by Mathtut(3670)![]() ![]() ![]() You can put this solution on YOUR website! lets call claire and Amy's age, c and a , respectively. \n" ); document.write( ": \n" ); document.write( "c=a+6......eq 1 \n" ); document.write( "c=3(a-4)...eq 2 \n" ); document.write( ": \n" ); document.write( "take c's value from eq 1 and plug it into eq 2 \n" ); document.write( ": \n" ); document.write( "(a+6)=3(a-4) \n" ); document.write( ": \n" ); document.write( "a+6=3a-12 \n" ); document.write( ": \n" ); document.write( "2a=18 \n" ); document.write( ": \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( " |