document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=253241>Question 253241</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me solve this linear system: <BR>\n" );
document.write( "x+7=-9y<BR>\n" );
document.write( "y=7-4x\r<BR>\n" );
document.write( "\n" );
document.write( "I need to figure out what x and y is..<BR>\n" );
document.write( "Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #185521 by </B><A HREF=/tutors/aboutme.mpl?userid=drk><B>drk(1908)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=drk><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=185521\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Our 2 original equations are:<BR>\n" );
document.write( "(i) x+7=-9y<BR>\n" );
document.write( "(ii) y=7-4x <BR>\n" );
document.write( "I will use substitution for this. Put (ii) in for the y in (i) as<BR>\n" );
document.write( "(iii) x + 7 = -9 (7-4x)<BR>\n" );
document.write( "distribute the-9 as<BR>\n" );
document.write( "(iv) x + 7 = -63 + 36x<BR>\n" );
document.write( "isolate x and the number as<BR>\n" );
document.write( "(v) 70 = 35x<BR>\n" );
document.write( "x = 2. since x = 2, we find y = -1.<BR>\n" );
document.write( "(2, -1) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );