document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=408284>Question 408284</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the system by substitution.<BR>\n" );
document.write( "1. x+y=-7<BR>\n" );
document.write( "   x=y+19\r<BR>\n" );
document.write( "\n" );
document.write( "show step by step work please\r<BR>\n" );
document.write( "\n" );
document.write( "also 2.  x^2=5 <BR>\n" );
document.write( "number 2 is not solving by substitution. It just says solve.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #287689 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=287689\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve the system by substitution.<BR>\n" );
document.write( "   x + y =-7<BR>\n" );
document.write( "   x = y + 19<BR>\n" );
document.write( "Use the 2nd equation for substitution in the 1st equation<BR>\n" );
document.write( "In the 1st equation replace x with (y+19)<BR>\n" );
document.write( "(y+19) + y = -7<BR>\n" );
document.write( "2y = -7 - 19<BR>\n" );
document.write( "2y = -26<BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-26%2F2 ALIGN=MIDDLE  ALT=\"-26%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "y = -13<BR>\n" );
document.write( "Find x using the 2nd equation, replace y with -13<BR>\n" );
document.write( "x = -13 + 19<BR>\n" );
document.write( "x = +6<BR>\n" );
document.write( "check solutions, substitute for x and y in the 1st equation<BR>\n" );
document.write( "6 - 13 = -7<BR>\n" );
document.write( ":<BR>\n" );
document.write( ":<BR>\n" );
document.write( "also 2. x^2=5 <BR>\n" );
document.write( "Find the square root of both sides<BR>\n" );
document.write( "x = +/-<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%285%29 ALIGN=MIDDLE  ALT=\"sqrt%285%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );