document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1036601>Question 1036601</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am trying to solve this equation by using the Elimination by Addition Method:<BR>\n" );
document.write( "-7x+4y=-1  and 5x-3y=0\r<BR>\n" );
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document.write( "Subsitution method:\r<BR>\n" );
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document.write( "2x-3y=5 and y=2x-7\r<BR>\n" );
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document.write( "Thank you for your help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #651285 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=651285\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi there,<BR>\n" );
document.write( "-7x + 4y = -1.....(1)<BR>\n" );
document.write( " 5x - 3y = 0......(2)<BR>\n" );
document.write( "Multiply Eq(1) by 3<BR>\n" );
document.write( "Multiply Eq(2) by 4<BR>\n" );
document.write( "-21x + 12y = -3...(1)<BR>\n" );
document.write( " 20x - 12y = 0 ...(2)<BR>\n" );
document.write( "Add Eq(1) to Eq(2)<BR>\n" );
document.write( "-x ........=-3<BR>\n" );
document.write( " x ........= 3<BR>\n" );
document.write( "Substitute x = 3 into<BR>\n" );
document.write( "Eq(1)<BR>\n" );
document.write( "-7x + 4y = -1.....(1)<BR>\n" );
document.write( "-7(3) + 4y = -1<BR>\n" );
document.write( "-21 + 4y = -1<BR>\n" );
document.write( "4y = -1 + 21<BR>\n" );
document.write( "4y = 20<BR>\n" );
document.write( "y = 5<BR>\n" );
document.write( "{3,5} Elimination Method.<BR>\n" );
document.write( "........<BR>\n" );
document.write( "2x - 3y = 5.......(1)  <BR>\n" );
document.write( "y = 2x - 7 .......(2)<BR>\n" );
document.write( "Substitute (2x - 7)for <BR>\n" );
document.write( "the y into Eq(1)<BR>\n" );
document.write( "2x - 3y = 5.......(1)<BR>\n" );
document.write( "2x -3(2x - 7) = 5<BR>\n" );
document.write( "multiply out<BR>\n" );
document.write( "2x - 6x + 21 = 5<BR>\n" );
document.write( "you now have an equation in x<BR>\n" );
document.write( "Collect like terms<BR>\n" );
document.write( "-4x = 5 - 21<BR>\n" );
document.write( "-4x = -16<BR>\n" );
document.write( "x = 4<BR>\n" );
document.write( "Substitute x = 4 into<BR>\n" );
document.write( "Eq(2)<BR>\n" );
document.write( "y = 2x - 7 .......(2)<BR>\n" );
document.write( "y = 2(4) - 7<BR>\n" );
document.write( "y = 8 - 7<BR>\n" );
document.write( "y = 1<BR>\n" );
document.write( "{4,1) Substitution Method<BR>\n" );
document.write( "Hope this helps :-)\r<BR>\n" );
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