document.write( "Question 1169771: The sum of the digits of a three-digit number is 9 and the tens digits of the number is twice the hundreds digits. The units digit is one more than the hundred digit. What is the original number \n" ); document.write( "
Algebra.Com's Answer #794594 by Boreal(15235)\"\" \"About 
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x+y+z=9
\n" ); document.write( "y=2x
\n" ); document.write( "z=x+1
\n" ); document.write( "so x+2x+x+1=9
\n" ); document.write( "4x=8
\n" ); document.write( "x=2
\n" ); document.write( "y=4
\n" ); document.write( "z=3
\n" ); document.write( "243
\n" ); document.write( "
\n" );