document.write( "Question 1121197: I am three digit number. My tens digit 4 more than my ones digit.my hundreds digit is 7 less than my tens digit.the sum of my digit is 16 \n" ); document.write( "

Algebra.Com's Answer #736985 by ikleyn(52802) $\"\"$ $\"About$

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document.write( "Let x be the \"ones\" digit.\r\n" );
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document.write( "Then \"tens\" digit is (x+4) and \"hundreds\" digit is (((x+4)-7) = x-3.\r\n" );
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document.write( "Then the equation is\r\n" );
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document.write( "x + (x+4) + (x-3) = 16\r\n" );
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document.write( "3x +1 = 16  ====>  3x = 15  ====>  x= 5.\r\n" );
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document.write( "Answer.  The numbers is  295.\r\n" );
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document.write( "    This problem is for one unknown and one equation.\r\n" );
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document.write( "    There is no any need to use three unknowns and three equations.\r\n" );
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