document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=524092>Question 524092</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me with these problems:<BR>\n" );
document.write( "Solve each system of equations by using substitution<BR>\n" );
document.write( "1. x-3y=9<BR>\n" );
document.write( "x+2y=-1\r<BR>\n" );
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document.write( "2. g+3h=8<BR>\n" );
document.write( "1/3g+h=9\r<BR>\n" );
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document.write( "3. 2a-4b=6<BR>\n" );
document.write( "-a+2b=-3\r<BR>\n" );
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document.write( "4. 2m+n=6<BR>\n" );
document.write( "5m+6n=1\r<BR>\n" );
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document.write( "5. 4x-3y=-6<BR>\n" );
document.write( "-x-2y=7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #347562 by </B><A HREF=/tutors/aboutme.mpl?userid=lagbens><B>lagbens(14)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lagbens><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=lagbens><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=347562\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1.X-3Y=9  (equation 1)<BR>\n" );
document.write( "  X+2Y=-1 (equation 2)<BR>\n" );
document.write( "let's solve for X in (eq.1):X=3Y+9<BR>\n" );
document.write( "let's replace X's value in (eq.2):3Y+9+2y=-1(add up Y terms)<BR>\n" );
document.write( "5Y+9=-1(subtract 9 from both side)<BR>\n" );
document.write( "5Y=-10(divide both side by 5)<BR>\n" );
document.write( "Y=-2<BR>\n" );
document.write( "now we got Y, just replace it in one of the 2 originals equation in order to find X.<BR>\n" );
document.write( "in (eq.2) we'd have X+2(-2)=-1<BR>\n" );
document.write( "X-4=-1(add 4 to both side)<BR>\n" );
document.write( "X=3.<BR>\n" );
document.write( "final solution (3,-2)<BR>\n" );
document.write( "Follow the same steps for the rest of 'em. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );