document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=83342>Question 83342</A>: <I><SPAN STYLE=\"word-break: break-all;\"> what is the sum of:<BR>\n" );
document.write( "x+1 and 3x<BR>\n" );
document.write( "___     ___<BR>\n" );
document.write( "x+3    x-4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #59840 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=59840\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> what is the sum of:<BR>\n" );
document.write( "x+1 and 3x<BR>\n" );
document.write( "___     ___<BR>\n" );
document.write( "x+3    x-4\r<BR>\n" );
document.write( "\n" );
document.write( "---------------<BR>\n" );
document.write( "to add the fractions they must have a common denominator:<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "lcm = (x+3)(x-4)<BR>\n" );
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document.write( "[(x+1)(x-4)] /lcm + (3x(x+3)/lcm\r<BR>\n" );
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document.write( "--------<BR>\n" );
document.write( "Now add the numerators to get:\r<BR>\n" );
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document.write( "= [x^2-3x-4+3x^2+9x]/lcm\r<BR>\n" );
document.write( "\n" );
document.write( "= [4x^2+6x-4]/[x^2+x-12]\r<BR>\n" );
document.write( "\n" );
document.write( "= [2(2x+3x-2)]/[(x+3)(x-4)]<BR>\n" );
document.write( "==============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );