document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=548422>Question 548422</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Using the elimination process how do you find<BR>\n" );
document.write( "-8x+4y=-7<BR>\n" );
document.write( "4x-2y=-1\r<BR>\n" );
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document.write( "3x+7y=10<BR>\n" );
document.write( "5x=7-2y\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #356991 by </B><A HREF=/tutors/aboutme.mpl?userid=Maths68><B>Maths68(1474)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Maths68><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=Maths68><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=356991\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-8x%2B4y=-7 ALIGN=MIDDLE  ALT=\"-8x%2B4y=-7\"   DISABLED_style= \"max-width:90%; height:auto;\" >..........(1)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4x-2y=-1 ALIGN=MIDDLE  ALT=\"4x-2y=-1\"   DISABLED_style= \"max-width:90%; height:auto;\" >...........(2)<BR>\n" );
document.write( "Multiply by -2 both sides of equation (2)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-8x%2B4y=2 ALIGN=MIDDLE  ALT=\"-8x%2B4y=2\"   DISABLED_style= \"max-width:90%; height:auto;\" >...........(3)\r<BR>\n" );
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document.write( "LHS of equation (1) and (3) are same but RHS of both equation is different. It means that values of x and y for both equation are different. Therefore it is impossible to know the value of x and y by solving these two equations.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B7y=10 ALIGN=MIDDLE  ALT=\"3x%2B7y=10\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............(1)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x=7-2y ALIGN=MIDDLE  ALT=\"5x=7-2y\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x%2B2y=7 ALIGN=MIDDLE  ALT=\"5x%2B2y=7\"   DISABLED_style= \"max-width:90%; height:auto;\" >..............(2)<BR>\n" );
document.write( "Multiply (1) by 5 and (2) by 3<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15x%2B35y=50 ALIGN=MIDDLE  ALT=\"15x%2B35y=50\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............(3)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15x%2B6y=21 ALIGN=MIDDLE  ALT=\"15x%2B6y=21\"   DISABLED_style= \"max-width:90%; height:auto;\" >..............(4)<BR>\n" );
document.write( "Subtract (4) from (3)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15x%2B35y=50 ALIGN=MIDDLE  ALT=\"15x%2B35y=50\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............(3)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-15x-6y=-21 ALIGN=MIDDLE  ALT=\"-15x-6y=-21\"   DISABLED_style= \"max-width:90%; height:auto;\" >..............(4)<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=29y=29 ALIGN=MIDDLE  ALT=\"29y=29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=29y%2F29=29 ALIGN=MIDDLE  ALT=\"29y%2F29=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%2829%29y%2Fcross%2829%29=cross%2829%29%2Fcross%2829%29 ALIGN=MIDDLE  ALT=\"cross%2829%29y%2Fcross%2829%29=cross%2829%29%2Fcross%2829%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=1 ALIGN=MIDDLE  ALT=\"y=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Put the value of y in (1)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B7y=10 ALIGN=MIDDLE  ALT=\"3x%2B7y=10\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............(1)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B7%281%29=10 ALIGN=MIDDLE  ALT=\"3x%2B7%281%29=10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B7=10 ALIGN=MIDDLE  ALT=\"3x%2B7=10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x=10-7 ALIGN=MIDDLE  ALT=\"3x=10-7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x=3 ALIGN=MIDDLE  ALT=\"3x=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2F3=3%2F3 ALIGN=MIDDLE  ALT=\"3x%2F3=3%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=1 ALIGN=MIDDLE  ALT=\"x=1\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "(x,y)=(1, 1)\r<BR>\n" );
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document.write( "Check<BR>\n" );
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document.write( "Put the values of x and y in (1)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3x%2B7y=10 ALIGN=MIDDLE  ALT=\"3x%2B7y=10\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............(1)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%281%29%2B7%281%29=10 ALIGN=MIDDLE  ALT=\"3%281%29%2B7%281%29=10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2B7=10 ALIGN=MIDDLE  ALT=\"3%2B7=10\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=10=10 ALIGN=MIDDLE  ALT=\"10=10\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Put the values of x and y in (2)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5x%2B2y=7 ALIGN=MIDDLE  ALT=\"5x%2B2y=7\"   DISABLED_style= \"max-width:90%; height:auto;\" >..............(2)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%281%29%2B2%281%29=7 ALIGN=MIDDLE  ALT=\"5%281%29%2B2%281%29=7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5%2B2=7 ALIGN=MIDDLE  ALT=\"5%2B2=7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7=7 ALIGN=MIDDLE  ALT=\"7=7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "</TD></TR></TABLE>\n" );