document.write( "Question 1050407: if tommy julie and linda's age all together is 64 and julie is twice as old as tommy and linda is 4 years older than tommy how old is each person \n" ); document.write( "

Algebra.Com's Answer #665985 by ikleyn(52799) $\"\"$ $\"About$

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\n" ); document.write( "if tommy julie and linda's age all together is 64 and julie is twice as old as tommy and linda is 4 years older than tommy how old is each person
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document.write( "Let T be Tommy's age.\r\n" );
document.write( "Then Julie is 2T years old, \r\n" );
document.write( "and Linda is T + 4 years old.\r\n" );
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document.write( "The sum of their ages is\r\n" );
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document.write( "T + 2T + (T+4) = 64.\r\n" );
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document.write( "One equation for one unknown.\r\n" );
document.write( "That is all they want from you.\r\n" );
document.write( "Forget about three equations and three variables.\r\n" );
document.write( "Focus on writing one equation in one unknown.\r\n" );
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document.write( "Now simplify and solve the equation:\r\n" );
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document.write( "4T = 60.\r\n" );
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document.write( "---> T = 15. Tommy is 15 years old.\r\n" );
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document.write( "Then Julie is 2*15 = 30 and Linda is 15+4 = 19.\r\n" );
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document.write( "Check.  15 + 30 + 19 = 64.\r\n" );
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document.write( "Answer. Tommy is 15, Linda is 19, Julie is 30 years old.\r\n" );
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