document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=577966>Question 577966</A>: <I><SPAN STYLE=\"word-break: break-all;\"> x-9y=46 7y-10x=-45  I\"m substituting<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 #370435 by </B><A HREF=/tutors/aboutme.mpl?userid=dfrazzetto><B>dfrazzetto(283)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=dfrazzetto><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=dfrazzetto><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=370435\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x-9y=46 and 7y-10x=-45, using substitution:\r<BR>\n" );
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document.write( "x=9y+46, substitute into second equation:\r<BR>\n" );
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document.write( "7y - 10(9y+46) = -45<BR>\n" );
document.write( "7y -90y -460 = -45<BR>\n" );
document.write( "-83y - 460 = -45<BR>\n" );
document.write( "-83y = 415<BR>\n" );
document.write( "y = -5\r<BR>\n" );
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document.write( "put y=5 back into one of the original equations:\r<BR>\n" );
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document.write( "x=9y + 46<BR>\n" );
document.write( "x=9(-5) +46<BR>\n" );
document.write( "x = -45 + 46 <BR>\n" );
document.write( "x=1\r<BR>\n" );
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document.write( "CHECK:\r<BR>\n" );
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document.write( "x=1, y=-5\r<BR>\n" );
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document.write( "7y-10x = -45<BR>\n" );
document.write( "7(-5) - 10(1) = -45<BR>\n" );
document.write( "-35 - 10 = -45<BR>\n" );
document.write( "-45=-45 &#8730; </SPAN>\n" );
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