document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=826792>Question 826792</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how do i do this problem by using substitution \r<BR>\n" );
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document.write( "-7x+2y=2<BR>\n" );
document.write( "y=4x+1 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #498259 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=498259\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve one of the equations for one of the variables.<BR>\n" );
document.write( "Substitute the expression for that variable into the other equation.<BR>\n" );
document.write( "Solve the resulting equation for the single variable.  <BR>\n" );
document.write( "Use either equation to determine the value of the other as yet unknown variable.\r<BR>\n" );
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document.write( "Your example already has one of the variables as a function of the other variable, so the process is one or two steps shorter.<BR>\n" );
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document.write( "-7x+2(4x+1)=2 </SPAN>\n" );
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