document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1081238>Question 1081238</A>: <I><SPAN STYLE=\"word-break: break-all;\">   The angle measures of a triangle are 2y + 3 degrees, 9y &#8722; 7 degrees, and 7y + 4 degrees. Which of the following is not one of the angle measures of the triangle?<BR>\n" );
document.write( "A. 23°<BR>\n" );
document.write( "B. 74°<BR>\n" );
document.write( "C. 83°<BR>\n" );
document.write( "D. 97°<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #695278 by </B><A HREF=/tutors/aboutme.mpl?userid=addingup><B>addingup(3677)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=addingup><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=addingup><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=695278\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> D is not one of your angles.<BR>\n" );
document.write( "-----------------------<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "2y + 3 + 9y &#8722; 7 + 7y + 4 = 180 (the three angles of EVERY triangle sum 180)<BR>\n" );
document.write( "Group like terms<BR>\n" );
document.write( "2y+9y+7y+3-7+4 =180<BR>\n" );
document.write( "18y = 180<BR>\n" );
document.write( "y = 10<BR>\n" );
document.write( "Substitute y with 10 in the equations above to get your answers:<BR>\n" );
document.write( "2(10)+3 = <BR>\n" );
document.write( "9(10)-7 = <BR>\n" );
document.write( "7(10)+4 = </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );