document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1023398>Question 1023398</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which answer correctly shows the first step that can be used to correctly solve the system of equations?\r<BR>\n" );
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document.write( "5x + 2y = 4 <BR>\n" );
document.write( "3x + 4y + 2z = 6 <BR>\n" );
document.write( "7x + 3y + 4z = 29\r<BR>\n" );
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document.write( "A.	<BR>\n" );
document.write( "3x + 4y + 2z = 6  &#8594;     3x + 4y + 4z = 6 <BR>\n" );
document.write( "7x + 3y + 4z = 29 &#8594; (­-)7x + 3y + 4z = 29\r<BR>\n" );
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document.write( "-4x ­-  y  =- ­23\r<BR>\n" );
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document.write( "B.	<BR>\n" );
document.write( "3x + 4y + 2z = 6 &#8594;     6x + 8y + 4z = 12 <BR>\n" );
document.write( " 7x + 3y + 4z = 29 &#8594; (-­)7x + 3y + 4z = 29\r<BR>\n" );
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document.write( "-x + 5y  = ­-17\r<BR>\n" );
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document.write( "C.	<BR>\n" );
document.write( "3x + 4y + 2z = 6 &#8594;     6x + 8y + 4z =  6<BR>\n" );
document.write( "7x + 3y + 4z = 29 &#8594; (-­)7x + 3y + 4z = 2\r<BR>\n" );
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document.write( "-x + 5y =- ­23\r<BR>\n" );
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document.write( "D.	<BR>\n" );
document.write( "3x + 4y + 2z = 6 &#8594;     6x + 8y + 4z = 12 <BR>\n" );
document.write( "7x + 3y + 4z = 29 &#8594; (-­)7x + 3y + 4z = 29\r<BR>\n" );
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document.write( "-x + 8y = 41 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #638891 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=638891\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Times New Roman\" size=\"+2\">\r<BR>\n" );
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document.write( "None of them are correct.  If you multiply the first term of one of the equations by -1, then you have to multiply ALL of the terms by -1.  So in every case <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large 7x\ +\ 3y\ +\ 4z\ =\ 29\ \right\  \left(-\right) 7x\ +\ 3y\ +\ 4z\ =\ 29\"> is not correct. \r<BR>\n" );
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document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi}\ +\ 1\ =\ 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large \ \\r\"> </SPAN>\n" );
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