document.write( "Question 1178800: In the following addition problem, each letter represents one of the digits
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document.write( "    A \r\n" );
document.write( "+ B B\r\n" );
document.write( "______ \r\n" );
document.write( "A D D

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Algebra.Com's Answer #808207 by ikleyn(52782)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "       A\r\n" );
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document.write( "    B  B\r\n" );
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document.write( " A  D  D\r\n" );
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document.write( "ANSWER.  A = 1;  B = 9;  D = 0.\r\n" );
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document.write( "CHECK\r\n" );
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document.write( "       1\r\n" );
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document.write( "    9  9\r\n" );
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document.write( " 1  0  0\r\n" );
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document.write( "            S O L U T I O N\r\n" );
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document.write( "Since  \"A\"  is the leading digit of the sum,  it is clear that  A = 1.\r\n" );
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document.write( "Next, since a two-digit number  BB  after adding the  \"1\"  becomes a three-digit number  ADD, \r\n" );
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document.write( "it is clear that  BB  is  99.   Than for the sum  ADD  there is only one possibility to be  100.\r\n" );
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