document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=147689>Question 147689</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/1592009425/algebrahomeworkh></A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> solve using elimination method and check <BR>\n" );
document.write( "15x+3y=-12<BR>\n" );
document.write( "2x+y=8 \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #108055 by </B><A HREF=/tutors/aboutme.mpl?userid=GKelly><B>GKelly(4)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=GKelly><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=108055\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For elimination do the following:\r<BR>\n" );
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document.write( "Rewrite the first equation 15x + 3y = -12. Below that multiply -3 times the entire second equation to arrive at -6x - 3y = -24.  When you line them up you will be able to cancel out the 3y and solve for x.\r<BR>\n" );
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document.write( "15x + 3y = -12<BR>\n" );
document.write( "-6x - 3y = -24  Now cancel out the 3y and solve for x\r<BR>\n" );
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document.write( "You'll end up with 9x = -36, x = -4\r<BR>\n" );
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document.write( "Now plug -4 into the x value in the first equation and solve for y.  \r<BR>\n" );
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document.write( "15(-4) + 3y = -12, -60 + 3y = -12, 3y = -12 + 60, 3y = 48, y = 16.\r<BR>\n" );
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document.write( "Take the first equation and where x is you plug in -4 and where y is you plug in 16.  \r<BR>\n" );
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document.write( "15(-4) + 3(16) = -12<BR>\n" );
document.write( "-60 + 48 = -12<BR>\n" );
document.write( "-12 = -12\r<BR>\n" );
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document.write( "You're done!<BR>\n" );
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