document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=39536>Question 39536</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve the pairs of equations using the addition or subtraction method. \r<BR>\n" );
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document.write( "3w - 2z = 38\r<BR>\n" );
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document.write( "z = 2w - 18\r<BR>\n" );
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document.write( "This is as far as I got, but I don't know if it's right.  \r<BR>\n" );
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document.write( "3w - 2z = 38<BR>\n" );
document.write( "2w + z = 18 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #24982 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=24982\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (1) 3w - 2z = 38<BR>\n" );
document.write( "(2) z = 2w -18<BR>\n" );
document.write( "subtract 2w from both sides of (2)<BR>\n" );
document.write( "z -2w = -18<BR>\n" );
document.write( "rearrange the left side<BR>\n" );
document.write( "-2w + z = -18<BR>\n" );
document.write( "now we have<BR>\n" );
document.write( "(1)  3w - 2z = 38<BR>\n" );
document.write( "(2) -2w + z = -18<BR>\n" );
document.write( "multiply both sides of (2) by 2<BR>\n" );
document.write( "(1)  3w - 2z = 38<BR>\n" );
document.write( "(2) -4w + 2z = -36<BR>\n" );
document.write( "add (1) to (2)<BR>\n" );
document.write( " -w = 2<BR>\n" );
document.write( "multiply both sides by -1<BR>\n" );
document.write( " w = -2<BR>\n" );
document.write( "substitute w = -2 in (2)<BR>\n" );
document.write( "z = 2*(-2) -18<BR>\n" );
document.write( "z = -4 -18<BR>\n" );
document.write( "z = -22<BR>\n" );
document.write( "check by substituting w and z in (1)<BR>\n" );
document.write( "3*(-2) - 2*(-22) = 38<BR>\n" );
document.write( "-6 + 44 = 38<BR>\n" );
document.write( "38 = 38<BR>\n" );
document.write( "OK </SPAN>\n" );
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