document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=576087>Question 576087</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve by substitution method for 8m+n=17 and m-9n=66 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #369734 by </B><A HREF=/tutors/aboutme.mpl?userid=Maths68><B>Maths68(1474)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Maths68><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=Maths68><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=369734\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 8m+n=17................(1)<BR>\n" );
document.write( "m-9n=66................(2)\r<BR>\n" );
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document.write( "Take (1)<BR>\n" );
document.write( "8m+n=17<BR>\n" );
document.write( "n=17-8m................(3)<BR>\n" );
document.write( "Substitute the value of n from (3) to (2)m-9n=66................(2)<BR>\n" );
document.write( "m-9n=66................(2)\r<BR>\n" );
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document.write( "m-9(17-8m)=66<BR>\n" );
document.write( "m-153+72m=66<BR>\n" );
document.write( "73m=66+153<BR>\n" );
document.write( "73m=219<BR>\n" );
document.write( "73m/73=219/73<BR>\n" );
document.write( "m=3<BR>\n" );
document.write( "Plug in the value of m in (1)<BR>\n" );
document.write( "8m+n=17................(1)<BR>\n" );
document.write( "8(3)+n=17<BR>\n" );
document.write( "24+n=17<BR>\n" );
document.write( "n=17-24<BR>\n" );
document.write( "n=-7\r<BR>\n" );
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document.write( "m,n=3,-7\r<BR>\n" );
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document.write( "Check<BR>\n" );
document.write( "========<BR>\n" );
document.write( "Plug in the value of m and n in (1)<BR>\n" );
document.write( "8m+n=17................(1)<BR>\n" );
document.write( "8(3)+(-7)=17<BR>\n" );
document.write( "24-7=17<BR>\n" );
document.write( "17=17\r<BR>\n" );
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document.write( "Plug in the value of m and n in (2)<BR>\n" );
document.write( "m-9n=66................(2)<BR>\n" );
document.write( "3-9(-7)=66<BR>\n" );
document.write( "3+63=66<BR>\n" );
document.write( "66=66 </SPAN>\n" );
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