document.write( "Question 139571: find the two-digit number whose tens digits is 4 less than its units digits if the original number is 2 more then 3 times the sum of the digits \n" ); document.write( "
Algebra.Com's Answer #101851 by ankor@dixie-net.com(22740)\"\" \"About 
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x = 10's digit
\n" ); document.write( "y = units
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\n" ); document.write( "\"find the two-digit number whose tens digits is 4 less than its units digits\"
\n" ); document.write( "x = y - 4
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\n" ); document.write( "\"if the original number is 2 more then 3 times the sum of the digits\"
\n" ); document.write( "10x + y = 2 + 3(x+y)
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\n" ); document.write( "10x + y = 2 + 3x + 3y
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\n" ); document.write( "10x - 3x = 3y - y + 2
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\n" ); document.write( "7x = 2y + 2
\n" ); document.write( "Substitute (y-4) for x, find y
\n" ); document.write( "7(y-4) = 2y + 2
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\n" ); document.write( "7y - 28 - 2y + 2
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\n" ); document.write( "7y - 2y = 2 + 28
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\n" ); document.write( "5y = 30
\n" ); document.write( "y = \"30%2F5\"
\n" ); document.write( "y = 6
\n" ); document.write( "therefore:
\n" ); document.write( "x = 6 - 4 = 2
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\n" ); document.write( "Our solutions is 26
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\n" ); document.write( "Check solution using the statement:
\n" ); document.write( "\"\"if the original number is 2 more then 3 times the sum of the digits\"
\n" ); document.write( "26 = 2 + 3(2+6)
\n" ); document.write( "26 = 2 + 24 \n" ); document.write( "
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