document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1038378>Question 1038378</A>: <I><SPAN STYLE=\"word-break: break-all;\"> z=2x+3y+7<BR>\n" );
document.write( "x=z+2/2<BR>\n" );
document.write( "y=-3z-7\r<BR>\n" );
document.write( "\n" );
document.write( "find the solution of x,y and z </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #653069 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=653069\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Substitution method:<BR>\n" );
document.write( "z=2x+3y+7<BR>\n" );
document.write( "x=z+2/2 NOTE: Did you mean 2/2? 2 divided by 2 = 1, so the number is 1<BR>\n" );
document.write( "y=-3z-7<BR>\n" );
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document.write( "z=2(z+1)+3(-3z-7)<BR>\n" );
document.write( "z=2z+2-9z-21<BR>\n" );
document.write( "z=-7z-19<BR>\n" );
document.write( "8z = -19<BR>\n" );
document.write( "z = -19/8 = -2 3/8 </SPAN>\n" );
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