document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=250168>Question 250168</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the Substitution method to solve the system of equations.\r<BR>\n" );
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document.write( "3x + y = 5<BR>\n" );
document.write( "4x - 7y = -10  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #182245 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=182245\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3x+y=5<BR>\n" );
document.write( "Y=-3X+5<BR>\n" );
document.write( "4x-7y=-10 REPLACE Y IN THIS EQUATION BY (-3X+5)<BR>\n" );
document.write( "4X-7(-3X+5)=-10<BR>\n" );
document.write( "4X+21X-35=-10<BR>\n" );
document.write( "25X=-10+35<BR>\n" );
document.write( "25X=25<BR>\n" );
document.write( "X=25/25=1 ANS.<BR>\n" );
document.write( "3*1+Y=5<BR>\n" );
document.write( "3+Y=5<BR>\n" );
document.write( "Y=5-3<BR>\n" );
document.write( "Y=2 ANS.<BR>\n" );
document.write( "PROOF:<BR>\n" );
document.write( "4*1-7*2=-10<BR>\n" );
document.write( "4-14=-10<BR>\n" );
document.write( "-10=-10<BR>\n" );
document.write( "  </SPAN>\n" );
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