document.write( "Question 1095908: Tony is 7 years older than Tiana. In 9 years the sum of their ages will be 53. How old is Tony now? \n" ); document.write( "

Algebra.Com's Answer #710388 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "Tony = Tiana + 7.              (1)\r\n" );
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document.write( "(Tony+9) + (Tiana+9) = 53      (2)  ====>\r\n" );
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document.write( "Tony      + Tiana    = 53 - 9 - 9 = 35  ====>  Replace here Tony by (Tiana+7), based on  (1)  ====>  \r\n" );
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document.write( "(Tiana+7) + Tiana = 35  ====>\r\n" );
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document.write( "2*Tiana = 35-7 = 28  ====>  Tiana =  = 14.\r\n" );
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document.write( "Answer.  Tiana = 14 years old,   Tony = Tiana + 7 = 14+7 = 21.\r\n" );
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