document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=373980>Question 373980</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Soluve using the multiplication principle first.  Then use the elimination method:\r<BR>\n" );
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document.write( "7p+5q=2<BR>\n" );
document.write( "8p-9q=17\r<BR>\n" );
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document.write( "I know a common number needs to be found but how do I choose which one?\r<BR>\n" );
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document.write( "Thanks! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #266167 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=266167\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7p+5q=2<BR>\n" );
document.write( "8p-9q=17<BR>\n" );
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document.write( "You can eliminate either p or q.  In this case, it's 7 & 8 or 5 & 9.<BR>\n" );
document.write( "I'll do 5 & 9<BR>\n" );
document.write( "7p+5q=2 --> 63p + 45q = 18<BR>\n" );
document.write( "8p-9q=17--> 40p - 45q = 85<BR>\n" );
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document.write( "63p + 45q = 18<BR>\n" );
document.write( "40p - 45q = 85<BR>\n" );
document.write( "-------------- Add<BR>\n" );
document.write( "103p = 103<BR>\n" );
document.write( "p = 1<BR>\n" );
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document.write( "7p+5q=2<BR>\n" );
document.write( "7 + 5q = 2<BR>\n" );
document.write( "5q = -5<BR>\n" );
document.write( "q = -1<BR>\n" );
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