document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=455390>Question 455390</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 9x+9y=18<BR>\n" );
document.write( "-5x + y = 14\r<BR>\n" );
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document.write( "solve by substituion\r<BR>\n" );
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document.write( "thank you in advance </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #312669 by </B><A HREF=/tutors/aboutme.mpl?userid=Cabdiqafaar><B>Cabdiqafaar(9)</B></A><img src=\"/images/stars/stars-05.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cabdiqafaar><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=Cabdiqafaar><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=312669\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 9x+9y=18<BR>\n" );
document.write( "-5x+y=14<BR>\n" );
document.write( "solving by substituting<BR>\n" );
document.write( "evaluate y <BR>\n" );
document.write( "-5x+y=14<BR>\n" );
document.write( "y=14+5x<BR>\n" );
document.write( "9x+9y=18<BR>\n" );
document.write( "9x+9(14+5x)=18<BR>\n" );
document.write( "9x+126+45x=18<BR>\n" );
document.write( "9x+45x=18-126<BR>\n" );
document.write( "54x=-108<BR>\n" );
document.write( "devide both sides by 54<BR>\n" );
document.write( "x=-2<BR>\n" );
document.write( "9x+9y=18<BR>\n" );
document.write( "substitude x by -2<BR>\n" );
document.write( "9(-2)+9y=18<BR>\n" );
document.write( "-18+9y=18<BR>\n" );
document.write( "9y=18+18<BR>\n" );
document.write( "9y=36<BR>\n" );
document.write( "devide both sides by 9<BR>\n" );
document.write( "y=4 </SPAN>\n" );
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