document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=778258>Question 778258</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please Help me to answer this...\r<BR>\n" );
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document.write( "The tens digit of a 2-digit number is 3 more than the ones digit. the number is equal to 7 times the sum of the digits. find the number. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #474522 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=474522\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "Please Help me to answer this...\r<BR>\n" );
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document.write( "The tens digit of a 2-digit number is 3 more than the ones digit. the number is equal to 7 times the sum of the digits. find the number.\r<BR>\n" );
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document.write( "Let the tens and units digits be T and U, respectively<BR>\n" );
document.write( "Then: T = U + 3 ----- eq (i)\r<BR>\n" );
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document.write( "10T + U = 7(T + U) ------ 10T + U = 7T + 7U ------ 10T – 7T + U – 7U = 0 ---- 3T – 6U = 0 ---- 3(T – 2U) = 3(0)<BR>\n" );
document.write( "T – 2U = 0 ------ eq (ii)<BR>\n" );
document.write( "U + 3 – 2U = 0 --------- Substituting U + 3 for T in eq (ii)<BR>\n" );
document.write( "U – 2U = - 3 <BR>\n" );
document.write( "- U = - 3\r<BR>\n" );
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document.write( "U, or units digit = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-+3%29%2F-+1 ALIGN=MIDDLE  ALT=\"%28-+3%29%2F-+1\"   DISABLED_style= \"max-width:90%; height:auto;\" >, or 3\r<BR>\n" );
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document.write( "T – 2(3) = 0 ---- Substituting 3 for U in eq (ii)<BR>\n" );
document.write( "T – 6 = 0\r<BR>\n" );
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document.write( "T, or tens digit = 6\r<BR>\n" );
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document.write( "Number is: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight_green%2863%29 ALIGN=MIDDLE  ALT=\"highlight_green%2863%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "You can do the check!! \r<BR>\n" );
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document.write( "Further help is available, online or in-person, for a fee, obviously. Send comments, “thank-yous,” and inquiries to “D” at MathMadEzy@aol.com </SPAN>\n" );
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