document.write( "Question 956001: Thrice a digit of a number is 5 less than twice its other digit. If two of its digits are equal, what is the number if the sum of its digits is 13?pls help with solutions.thaks a lot. \n" ); document.write( "
Algebra.Com's Answer #584179 by ankor@dixie-net.com(22740)\"\" \"About 
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We have 3 digits, two them the same;
\n" ); document.write( "a, a, b
\n" ); document.write( "Set up the equations so we can use elimination to solve this
\n" ); document.write( ":
\n" ); document.write( "Thrice a digit of a number is 5 less than twice its other digit.
\n" ); document.write( "3a = 2b - 5
\n" ); document.write( "3a - 2b = -5
\n" ); document.write( " If two of its digits are equal, what is the number if the sum of its digits is 13?
\n" ); document.write( "a + a + b = 13
\n" ); document.write( "2a + b = 13
\n" ); document.write( "multiply by 2, add to the first equation
\n" ); document.write( "4a + 2b = 26
\n" ); document.write( "3a - 2b = -5
\n" ); document.write( "--------------Addition eliminates b, find a
\n" ); document.write( "7a = 21
\n" ); document.write( "a = 21/7
\n" ); document.write( "a = 3 is the equal digits
\n" ); document.write( "Find b using the equation 2a + b = 13
\n" ); document.write( "2(3) + b = 13
\n" ); document.write( "b = 13 - 6
\n" ); document.write( "b = 7
\n" ); document.write( ":
\n" ); document.write( "the number could be 373 or 733 or 337 \n" ); document.write( "
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