document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=402547>Question 402547</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi!!!<BR>\n" );
document.write( "Solve the system using substitution<BR>\n" );
document.write( "y=8-x and 7=2-y<BR>\n" );
document.write( "I got -13=x but I can't figure out what y equals.<BR>\n" );
document.write( "Thank you so much!<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #284714 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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=284714\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve:<BR>\n" );
document.write( "1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+8-x ALIGN=MIDDLE  ALT=\"y+=+8-x\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute this for y in equation 2).<BR>\n" );
document.write( "2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7+=+2-y ALIGN=MIDDLE  ALT=\"7+=+2-y\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2a) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7+=+2-%288-x%29 ALIGN=MIDDLE  ALT=\"7+=+2-%288-x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2b) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7+=+2-8%2Bx ALIGN=MIDDLE  ALT=\"7+=+2-8%2Bx\"   DISABLED_style= \"max-width:90%; height:auto;\" > Notice the change of sign on x.<BR>\n" );
document.write( "2c) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7+=+-6%2Bx ALIGN=MIDDLE  ALT=\"7+=+-6%2Bx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2d) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=13+=+x ALIGN=MIDDLE  ALT=\"13+=+x\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+13 ALIGN=MIDDLE  ALT=\"x+=+13\"   DISABLED_style= \"max-width:90%; height:auto;\" > Notice that x is positive! Now substitute this value of x into either one of the two given equations and solve for y. Let's use equation 1).<BR>\n" );
document.write( "1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+8-x ALIGN=MIDDLE  ALT=\"y+=+8-x\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute x = 13.<BR>\n" );
document.write( "1a) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+8-13 ALIGN=MIDDLE  ALT=\"y+=+8-13\"   DISABLED_style= \"max-width:90%; height:auto;\" > so <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+-5 ALIGN=MIDDLE  ALT=\"y+=+-5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The solution is: (13,-5)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );