document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=572875>Question 572875</A>: <I><SPAN STYLE=\"word-break: break-all;\"> {y=2x+2}<BR>\n" );
document.write( "y=-x-1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #368579 by </B><A HREF=/tutors/aboutme.mpl?userid=TutorDelphia><B>TutorDelphia(193)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TutorDelphia><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=TutorDelphia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=368579\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> {y=2x+2}<BR>\n" );
document.write( "y=-x-1\r<BR>\n" );
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document.write( "we can multiply the second equation by two to get:<BR>\n" );
document.write( "2y=-2x-2<BR>\n" );
document.write( "if we add this to <BR>\n" );
document.write( "y=2x+2<BR>\n" );
document.write( "we get:<BR>\n" );
document.write( "3y=0<BR>\n" );
document.write( "y=0<BR>\n" );
document.write( "sub in 0 for y and we get:<BR>\n" );
document.write( "x=-1\r<BR>\n" );
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document.write( "we can also solve by graphing since both are in slope intercept form<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+2x%2B2%2C+-x-1%29+ ALIGN=MIDDLE  ALT=\"+graph%28+600%2C+600%2C+-10%2C+10%2C+-10%2C+10%2C+2x%2B2%2C+-x-1%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );