document.write( "Question 911608: The units digit is eight times the tens digit of a digit of a two-digit number. The original number minus the number when the digits are reversed is -63. What is the original number? \n" ); document.write( "
Algebra.Com's Answer #553204 by josmiceli(19441)\"\" \"About 
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Let \"+u+\" = the units digit
\n" ); document.write( "Let \"+t+\" = the tens digit
\n" ); document.write( "The \"value\" of the number is:
\n" ); document.write( "\"+10t+%2B+u+\"
\n" ); document.write( "---------------------------
\n" ); document.write( "(1) \"+u+=+8%2At+\"
\n" ); document.write( "Right away you know that \"+t+=+1+\"
\n" ); document.write( "Anything higher would make \"+u+\"
\n" ); document.write( "a 2-digit number
\n" ); document.write( "-----------------------
\n" ); document.write( "(2) \"+10t+%2B+u+-+%28+10u+%2B+t+%29+=+-63+\"
\n" ); document.write( "Since \"+t=1+\",
\n" ); document.write( "(2) \"+10+%2B+u+-+10u+-+1+=+-63+\"
\n" ); document.write( "(2) \"+-9u+=+-63+-+9+\"
\n" ); document.write( "(2) \"+-9u+=+-72+\"
\n" ); document.write( "(2) \"+u+=+8+\"
\n" ); document.write( "The number is 18\r
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