document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=190154>Question 190154</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by substitution method<BR>\n" );
document.write( "15x-10y=-1<BR>\n" );
document.write( "5y=1+10x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #142718 by </B><A HREF=/tutors/aboutme.mpl?userid=jojo14344><B>jojo14344(1513)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jojo14344><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=142718\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Tahoma\" szie=1.5><BR>\n" );
document.write( "</pre><font size=4><b><BR>\n" );
document.write( "Given Line Eqns. <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15x-10y=-1+ ALIGN=MIDDLE  ALT=\"15x-10y=-1+\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28red%28EQN1%29%29 ALIGN=MIDDLE  ALT=\"+%28red%28EQN1%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5y=1%2B10x ALIGN=MIDDLE  ALT=\"5y=1%2B10x\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28red%28EQN2%29%29 ALIGN=MIDDLE  ALT=\"%28red%28EQN2%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "In EQN 2, isolate \"y\" then subst. value to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=red%28EQN1%29 ALIGN=MIDDLE  ALT=\"red%28EQN1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%285%29y%2Fcross%285%29=%281%2B10x%29%2F5 ALIGN=MIDDLE  ALT=\"cross%285%29y%2Fcross%285%29=%281%2B10x%29%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=%281%2F5%29%2B%2810%2F5%29x ALIGN=MIDDLE  ALT=\"y=%281%2F5%29%2B%2810%2F5%29x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=%281%2F5%29%2B2x ALIGN=MIDDLE  ALT=\"y=%281%2F5%29%2B2x\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=red%28EQN3%29 ALIGN=MIDDLE  ALT=\"red%28EQN3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "Then,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15x-10%28highlight%281%2F5%2B2x%29%29=-1 ALIGN=MIDDLE  ALT=\"15x-10%28highlight%281%2F5%2B2x%29%29=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15x-10%2F5-20x=-1 ALIGN=MIDDLE  ALT=\"15x-10%2F5-20x=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15x-20x=-1%2B10%2F5=-1%2B2 ALIGN=MIDDLE  ALT=\"15x-20x=-1%2B10%2F5=-1%2B2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-5x=1 ALIGN=MIDDLE  ALT=\"-5x=1\"   DISABLED_style= \"max-width:90%; height:auto;\" > ---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=cross%28-5%29x%2Fcross%28-5%29=1%2F-5 ALIGN=MIDDLE  ALT=\"cross%28-5%29x%2Fcross%28-5%29=1%2F-5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=red%28x=-1%2F5%29 ALIGN=MIDDLE  ALT=\"red%28x=-1%2F5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >, subst. in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=red%28EQN3%29 ALIGN=MIDDLE  ALT=\"red%28EQN3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=%281%2F5%29%2B2%28highlight%28-1%2F5%29%29 ALIGN=MIDDLE  ALT=\"y=%281%2F5%29%2B2%28highlight%28-1%2F5%29%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=%281%2F5%29-2%2F5 ALIGN=MIDDLE  ALT=\"y=%281%2F5%29-2%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=red%28y=-1%2F5%29 ALIGN=MIDDLE  ALT=\"red%28y=-1%2F5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "These 2 lines intersect at point (-1/5,-1.5) or (-0.20,-0.20)\r<BR>\n" );
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document.write( "We'll see,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28400%2C400%2C-2%2C2%2C-2%2C2%2Cgraph%28400%2C400%2C-2%2C2%2C-2%2C2%2C%2815x%2B1%29%2F10%2C%281%2B10x%29%2F5%29%2Ccircle%28-1%2F5%2C-1%2F5%2C.04%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > ---> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=red%28RED=EQN1%29 ALIGN=MIDDLE  ALT=\"red%28RED=EQN1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >; <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=green%28GREEN=EQN2%29 ALIGN=MIDDLE  ALT=\"green%28GREEN=EQN2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Thank you,<BR>\n" );
document.write( "Jojo</font><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );