document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=376296>Question 376296</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve using the multiplication principle first. Then use the elimination method:<BR>\n" );
document.write( "7p+5q=2<BR>\n" );
document.write( "8p-9q=17\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #267683 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley79><B>checkley79(3341)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley79><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=267683\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7p+5q=2 multiply by 8<BR>\n" );
document.write( "8p-9q=17 multiply by -7 & add.<BR>\n" );
document.write( "56p+40q=16<BR>\n" );
document.write( "-56p+63q=-119<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "103q=-103<BR>\n" );
document.write( "q=-103/103<BR>\n" );
document.write( "q=-1 ans.<BR>\n" );
document.write( "7p+5*-1=2<BR>\n" );
document.write( "7p-5=2<BR>\n" );
document.write( "7p=5+2<BR>\n" );
document.write( "7p=7<BR>\n" );
document.write( "p=7/7<BR>\n" );
document.write( "p=1 ans.<BR>\n" );
document.write( "Proof:<BR>\n" );
document.write( "8*1-9*-1=17<BR>\n" );
document.write( "8+9=17<BR>\n" );
document.write( "17=17<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );