document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=110541>Question 110541</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am given that there is a equiangular triangle ABC.  Side AB is 17 units, side BC is 5x-y and side AC is 7x+2y.  I need to write my answer in standard form of Ax+By=C but do not have to solve. \r<BR>\n" );
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document.write( " I just dont understand how to do this when x & y are together. Thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #80568 by </B><A HREF=/tutors/aboutme.mpl?userid=bucky><B>bucky(2189)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bucky><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=80568\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> One of the things that will help you here is to recognize that an equiangular triangle<BR>\n" );
document.write( "(all three angles are equal and therefore are 180/3 = 60 degrees) is also an equilateral<BR>\n" );
document.write( "triangle (all sides equal).<BR>\n" );
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document.write( "Since you are told that side AB is 17 units, you know then that side BC and side AC are each <BR>\n" );
document.write( "17 units long also.<BR>\n" );
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document.write( "You are told that side BC is 5x - y and you know that it is also 17 units long. Therefore,<BR>\n" );
document.write( "for side BC you can write:<BR>\n" );
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document.write( "5x - y = 17<BR>\n" );
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document.write( "Next you are told that side AC is 7x + 2y and you know that it is also is 17 units long.<BR>\n" );
document.write( "Therefore, for side AC you can write:<BR>\n" );
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document.write( "7x + 2y = 17<BR>\n" );
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document.write( "So for this triangle you now have two equations:<BR>\n" );
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document.write( "5x - y = 17 <==== for side BC ... and<BR>\n" );
document.write( "7x + 2y = 17 <=== for side AC<BR>\n" );
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document.write( "These are the two equations you are looking for. Since you have two linear equations <BR>\n" );
document.write( "with two unknowns, assuming that they are independent, you could solve for x and y.<BR>\n" );
document.write( "In case you try it, the answers are x = 3 and y = -2. If you substitute these two values<BR>\n" );
document.write( "into the left side of the equations for BC and AC you should find that the left sides of<BR>\n" );
document.write( "these two equations actually does equal 17.<BR>\n" );
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document.write( "Hope this helps you to understand the problem a little better.<BR>\n" );
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document.write( " </SPAN>\n" );
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