document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=74613>Question 74613</A>: <I><SPAN STYLE=\"word-break: break-all;\"> substitution method<BR>\n" );
document.write( "-x+3y=10<BR>\n" );
document.write( "2x+8y=-6<BR>\n" );
document.write( "I need help with this problem if anyone could help, I would appreciate it.<BR>\n" );
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 #53640 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=53640\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> substitution method<BR>\n" );
document.write( "-x+3y=10----------------------eq 1<BR>\n" );
document.write( "2x+8y=-6-------------------------eq2\r<BR>\n" );
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document.write( "solve for x in eq 1 and plug the value for x into eq 2:\r<BR>\n" );
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document.write( "-x+3y=10  subtract 3y from both sides\r<BR>\n" );
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document.write( "-x+3y-3y=10-3y<BR>\n" );
document.write( "-x=10-3y  multiply both sides by -1<BR>\n" );
document.write( "x=3y-10   plug this into eq2\r<BR>\n" );
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document.write( "2(3y-10)+8y=-6  get rid of parens\r<BR>\n" );
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document.write( "6y-20+8y=-6  add 20 to both sides and collect like terms<BR>\n" );
document.write( "14y-20+20=-6+20<BR>\n" );
document.write( "14y=14  divide both sides by 14<BR>\n" );
document.write( "y=1   substitute y=1 into eq 2-----------------------------ans for y<BR>\n" );
document.write( "2x+8(1)=-6<BR>\n" );
document.write( "2x+8=-6 subtract 8 from both sides<BR>\n" );
document.write( "2x+8-8=-6-8 collect like terms<BR>\n" );
document.write( "2x=-14  divide both sides by 2<BR>\n" );
document.write( "x=-7---------------------------------------------ans for x\r<BR>\n" );
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document.write( "CK<BR>\n" );
document.write( "-x+3y=10----------------------eq 1<BR>\n" );
document.write( "7+3=10<BR>\n" );
document.write( "10=10\r<BR>\n" );
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document.write( "2x+8y=-6-------------------------eq2<BR>\n" );
document.write( "2*(-7)+8=-6<BR>\n" );
document.write( "-14+8=-6<BR>\n" );
document.write( "-6=-6\r<BR>\n" );
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document.write( "Hope this helps-----ptaylor\r<BR>\n" );
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