document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=901185>Question 901185</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need to solve the systems of equations by elimination and I do not understand how to solve by substitution. Can you help? <BR>\n" );
document.write( "y+5x=-3<BR>\n" );
document.write( "3y-2x=8<BR>\n" );
document.write( "Thank you so much! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #546524 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=546524\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I need to solve the systems of equations by elimination::<BR>\n" );
document.write( "y+5x=-3<BR>\n" );
document.write( "3y-2x=8<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "Modify for elimination::<BR>\n" );
document.write( "3y + 15x = -9<BR>\n" );
document.write( "3y - 2x = 8<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Subtract and solve for \"x\":<BR>\n" );
document.write( "17x = -17<BR>\n" );
document.write( "x = -1<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Solve for \"y\" using y + 5x = -3<BR>\n" );
document.write( "y + 5(-1) = -3<BR>\n" );
document.write( "y - 5 = -3<BR>\n" );
document.write( "y = 2<BR>\n" );
document.write( "------<BR>\n" );
document.write( "Ans: (-1,2)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );