document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1036227>Question 1036227</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi, I have an exam soon and my teacher gave us a practice quiz to get ready for it. He also gave us the answer sheet. However, I cannot find out a way to get to the answer he has given. Could you please explain how to do this problem?<BR>\n" );
document.write( "Find the measure of two vertical angles if they measure 90 + 2y and 7y + 9.<BR>\n" );
document.write( "The answer is 122.4°.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #650864 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=650864\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> That information only means that  90+2y=7y+9, because two vertical angles are congruent.  Solve for y.  The value of y IS NOT 122.4.  But knowing the expression of either angle, USE y to find either angle.  Is this 122.4?\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90%2B2y=7y%2B9 ALIGN=MIDDLE  ALT=\"90%2B2y=7y%2B9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=90=5y%2B9 ALIGN=MIDDLE  ALT=\"90=5y%2B9\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=81=5y ALIGN=MIDDLE  ALT=\"81=5y\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=81%2F5 ALIGN=MIDDLE  ALT=\"y=81%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7%2881%2F5%29%2B9=theAngle ALIGN=MIDDLE  ALT=\"7%2881%2F5%29%2B9=theAngle\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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