document.write( "Question 1147095: Grandmother is 4 times as old as grandson 5 years ago. How old is the grandmother if their present age is 55 years together?
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Algebra.Com's Answer #768385 by ikleyn(52786) $\"\"$ $\"About$

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document.write( "grandson + 4*(grandson-5) = 55\r\n" );
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document.write( "5*grandson = 55 + 20 = 75\r\n" );
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document.write( "grandson = 75/5 = 15 years old.    ANSWER\r\n" );
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