document.write( "Question 528257: I am a 2-digit number. The sum of my digits is 6.
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Algebra.Com's Answer #349235 by Edwin McCravy(20055) $\"\"$ $\"About$

You can put this solution on YOUR website!
I am a 2-digit number.
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document.write( "Let t = your tens digit\r\n" );
document.write( "Let u = your units digit\r\n" );
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document.write( "    t + u = 6\r\n" );
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\n" ); document.write( "My units digit is 2 times my tens digit.
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document.write( "        u = 2t\r\n" );
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document.write( "So you have this system of equations:\r\n" );
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document.write( "    t + u = 6\r\n" );
document.write( "        u = 2t\r\n" );
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document.write( "Substitute 2t for u in t + u = 6\r\n" );
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document.write( "   t + 2t = 6\r\n" );
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document.write( "       3t = 6\r\n" );
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document.write( "        t = 2\r\n" );
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document.write( "u = 2t = 2(2) = 4\r\n" );
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\n" ); document.write( "Who am I?
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document.write( "You are the number 24. \r\n" );
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document.write( "Edwin

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