document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=414173>Question 414173</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve by the substitution method\r<BR>\n" );
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document.write( "6x+4y=-24<BR>\n" );
document.write( "-3x+y=21\r<BR>\n" );
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document.write( "the solution is? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #290521 by </B><A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><B>algebrahouse.com(1659)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><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=algebrahouse.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=290521\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> solve by the substitution method\r<BR>\n" );
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document.write( "6x + 4y = -24<BR>\n" );
document.write( "-3x + y = 21------> y = 3x + 21 {added 3x to both sides}\r<BR>\n" );
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document.write( "6x + 4y = -24 {top equation}<BR>\n" );
document.write( "6x + 4(3x + 21) = -24 {substituted 3x + 21, in for y, into top equation}<BR>\n" );
document.write( "6x + 12x + 84 = -24 {used distributive property}<BR>\n" );
document.write( "18x + 84 = -24 {combined like terms}<BR>\n" );
document.write( "18x = -108 {subtracted 84 from both sides}<BR>\n" );
document.write( "x = -6 {divided both sides by 18}\r<BR>\n" );
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document.write( "y = 3x + 21<BR>\n" );
document.write( "y = 3(-6) + 21 {substituted -6, in for x, into y = 3x + 21}<BR>\n" );
document.write( "y = -18 + 21 multiplied 3 by -6}<BR>\n" );
document.write( "y = 3 {combined like terms}\r<BR>\n" );
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document.write( "x = -6 and y = 3<BR>\n" );
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