document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=56645>Question 56645</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How do I know which one to subtract by? \r<BR>\n" );
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document.write( "EX. -7x-3y=42  \r<BR>\n" );
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document.write( "Would I subtract by -7x or -3y? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #38472 by </B><A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><B>tutorcecilia(2152)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=tutorcecilia><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=tutorcecilia><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=38472\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> -7x-3y=42  [You are trying to find the value of y, so isolate the y term.  Because you are trying to re-write the equation in the slope-intercept form of (y=mx+b), so in this case, isolate the y]<BR>\n" );
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document.write( "-7x+7x-3y=+7x+42 [Add (7x) to both sides]<BR>\n" );
document.write( "-3y=7x+42 [Divide both sides by (-3)]<BR>\n" );
document.write( "-3y/-3=7x/-3+42/-3<BR>\n" );
document.write( "y=(-7/3)x+(-42/3) [Simplify]<BR>\n" );
document.write( "y=-7/3x-14  </SPAN>\n" );
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