document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=908628>Question 908628</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the three angles of a triangular flag are x, three times the complement of x, and one-seventh the supplement. find the angle measures. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #551162 by </B><A HREF=/tutors/aboutme.mpl?userid=ewatrrr><B>ewatrrr(24785)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ewatrrr><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=ewatrrr><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=551162\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x + 3(90-x) + (180-x)/7 = 180°<BR>\n" );
document.write( "7x + 21(90-x) + (180-x) = 1260<BR>\n" );
document.write( "Solve for x<BR>\n" );
document.write( "-15x = 1260 - 1890 - 180<BR>\n" );
document.write( "x = 54°<BR>\n" );
document.write( "3(90-54) = 108°<BR>\n" );
document.write( "(180-54)/7 = 18°<BR>\n" );
document.write( "and..checking...<BR>\n" );
document.write( "54° + 108° + 18° = 180 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );