document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=813599>Question 813599</A>: <I><SPAN STYLE=\"word-break: break-all;\"> two parallel lines are intersected by a transversal forming alternate interior angles: 6x - 12 and 3x + 21, What are their measures? Be sure to solve the problem and not just your equation. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #489822 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=489822\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> they add up to 180<BR>\n" );
document.write( "6x-12+3x+21=180<BR>\n" );
document.write( "9x+9=180<BR>\n" );
document.write( "x=19<BR>\n" );
document.write( "3x+21=3*19+21=78<BR>\n" );
document.write( "6x-12=102\r<BR>\n" );
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document.write( " </SPAN>\n" );
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