document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=829302>Question 829302</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2a-4b=6 and -a+2b=-3 solve using substituiton  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #499763 by </B><A HREF=/tutors/aboutme.mpl?userid=erica65404><B>erica65404(394)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=erica65404><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=erica65404><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=499763\">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=2a-4b=6 ALIGN=MIDDLE  ALT=\"2a-4b=6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-a%2B2b=-3 ALIGN=MIDDLE  ALT=\"-a%2B2b=-3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "solve one of the equations for a.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2a-4b=6 ALIGN=MIDDLE  ALT=\"2a-4b=6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2a-4b%2B4b=6%2B4b ALIGN=MIDDLE  ALT=\"2a-4b%2B4b=6%2B4b\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2a=4b%2B6 ALIGN=MIDDLE  ALT=\"2a=4b%2B6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2a%2F2=%284b%2B6%29%2F2 ALIGN=MIDDLE  ALT=\"2a%2F2=%284b%2B6%29%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=2b%2B3 ALIGN=MIDDLE  ALT=\"a=2b%2B3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "You can use the substitution method by replacing any a with 2b+3 since a is equal to 2b+3.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-a%2B2b=-3 ALIGN=MIDDLE  ALT=\"-a%2B2b=-3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-%282b%2B3%29%2B2b=-3 ALIGN=MIDDLE  ALT=\"-%282b%2B3%29%2B2b=-3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2b-3%2B2b=-3 ALIGN=MIDDLE  ALT=\"-2b-3%2B2b=-3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-3=-3 ALIGN=MIDDLE  ALT=\"-3=-3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "whenever you are left without the variable, and the statement is true, ie -3 is equal to -3, then it means infinite solutions. if it were untrue, ie 5 is equal to 2, then it would be no solution.  Since -3=-3, b=any number.  And since b is any number, a would also be any number.<BR>\n" );
document.write( "answer: a=any number, b=any number<BR>\n" );
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