document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=141145>Question 141145</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve \r<BR>\n" );
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document.write( "(2x + 3y = 7<BR>\n" );
document.write( "(x - 2y = 7  (Use substitution.)<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 #102869 by </B><A HREF=/tutors/aboutme.mpl?userid=nabla><B>nabla(475)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nabla><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=102869\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> From the second equation,<BR>\n" );
document.write( "(1) x=7+2y<BR>\n" );
document.write( "plug (1) into the first equation:<BR>\n" );
document.write( "2(7+2y)+3y=7<BR>\n" );
document.write( "14+4y+3y=7<BR>\n" );
document.write( "7y+14=7<BR>\n" );
document.write( "(2) y=-1\r<BR>\n" );
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document.write( "Now, plug (2) into (1):<BR>\n" );
document.write( "x=7+2(-1)<BR>\n" );
document.write( "(3) x=5\r<BR>\n" );
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document.write( "Now, check to make sure these are correct:\r<BR>\n" );
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document.write( "2(5) + 3(-1) =10-3=7 <BR>\n" );
document.write( "5 - 2(-1) = 7  </SPAN>\n" );
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