document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=286942>Question 286942</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the vertex angle of an isosceles triangle with base angles of (8x-7) and (6x+9). Show your work for credit. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #208069 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=208069\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hint: Let 'y' be the vertex angle. Recall that the angles in a triangle add to 180 degrees. So <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%288x-7%29%2B%286x%2B9%29%2By=180 ALIGN=MIDDLE  ALT=\"%288x-7%29%2B%286x%2B9%29%2By=180\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Also, since we're dealing with an isosceles triangle, this means that the base angles are equal. This means that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8x-7=6x%2B9 ALIGN=MIDDLE  ALT=\"8x-7=6x%2B9\"   DISABLED_style= \"max-width:90%; height:auto;\" >. Solve this equation for 'x' and then use that solution to find 'y'.<BR>\n" );
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