document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1205946>Question 1205946</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can some please help me solve and understand this problem?<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 #843061 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=843061\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%282%2C3%2C%0D%0A1%2C-4%2C5%2C%0D%0A7%2C-3%2C2%29 ALIGN=MIDDLE  ALT=\"matrix%282%2C3%2C%0D%0A1%2C-4%2C5%2C%0D%0A7%2C-3%2C2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "1. write the equation for the augmented matrix\r<BR>\n" );
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document.write( "your matrix represents following system of linear equations:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x-4y=5 ALIGN=MIDDLE  ALT=\"x-4y=5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=7x-3y=2 ALIGN=MIDDLE  ALT=\"7x-3y=2\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Write the coefficients of the x-terms as the numbers down the first column. <BR>\n" );
document.write( "Write the coefficients of the y-terms as the numbers down the second column. <BR>\n" );
document.write( "If there are z-terms, write the coefficients as the numbers down the third column. <BR>\n" );
document.write( "Draw a vertical line and write the constants to the right of the line.<BR>\n" );
document.write( " the system of linear equations, as follows:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%282%2C2%2C%0D%0A1%2C-4%2C%0D%0A7%2C-3%29 ALIGN=MIDDLE  ALT=\"matrix%282%2C2%2C%0D%0A1%2C-4%2C%0D%0A7%2C-3%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > |<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%282%2C1%2C5%2C2%29 ALIGN=MIDDLE  ALT=\"matrix%282%2C1%2C5%2C2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2.<BR>\n" );
document.write( "write a row-reduction algorithm to help your classmate or family member solve the matrix<BR>\n" );
document.write( "Algorithm(Row Reduction)\r<BR>\n" );
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document.write( "Gaussian elimination, also known as row reduction, is an algorithm for solving systems of linear equations.\r<BR>\n" );
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document.write( "Your matrix\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%282%2C3%2C%0D%0A1%2C-4%2C5%2C%0D%0A7%2C-3%2C2%29 ALIGN=MIDDLE  ALT=\"matrix%282%2C3%2C%0D%0A1%2C-4%2C5%2C%0D%0A7%2C-3%2C2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Find the pivot in the 1st column in the 1st row\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%282%2C3%2C%0D%0A1%2C%09-4%2C%095%2C%0D%0A7%2C%09-3%2C%092%29 ALIGN=MIDDLE  ALT=\"matrix%282%2C3%2C%0D%0A1%2C%09-4%2C%095%2C%0D%0A7%2C%09-3%2C%092%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Eliminate the 1st column\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%282%2C3%2C%0D%0A1%2C%09-4%2C%095%2C%0D%0A0%2C%0925%2C%09-33%29 ALIGN=MIDDLE  ALT=\"matrix%282%2C3%2C%0D%0A1%2C%09-4%2C%095%2C%0D%0A0%2C%0925%2C%09-33%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Make the pivot in the 2nd column by dividing the 2nd row by <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=25 ALIGN=MIDDLE  ALT=\"25\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%282%2C3%2C%0D%0A1%2C%09-4%2C%095%2C%0D%0A0%2C%091%2C%09-33%2F25%29 ALIGN=MIDDLE  ALT=\"matrix%282%2C3%2C%0D%0A1%2C%09-4%2C%095%2C%0D%0A0%2C%091%2C%09-33%2F25%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "Eliminate the 2nd column\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%282%2C3%2C%0D%0A1%2C%090%2C%09-7%2F25%2C%0D%0A0%2C%091%2C%09-33%2F25%29 ALIGN=MIDDLE  ALT=\"matrix%282%2C3%2C%0D%0A1%2C%090%2C%09-7%2F25%2C%0D%0A0%2C%091%2C%09-33%2F25%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "3. <BR>\n" );
document.write( "perform your algorithm to solve the matrix\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=matrix%282%2C3%2C%0D%0A1%2C%090%2C%09-7%2F25%2C%0D%0A0%2C%091%2C%09-33%2F25%29 ALIGN=MIDDLE  ALT=\"matrix%282%2C3%2C%0D%0A1%2C%090%2C%09-7%2F25%2C%0D%0A0%2C%091%2C%09-33%2F25%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "the solution of your system is in the third column:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+-7%2F25 ALIGN=MIDDLE  ALT=\"x+=+-7%2F25\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y+=+-33%2F25 ALIGN=MIDDLE  ALT=\"y+=+-33%2F25\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( " </SPAN>\n" );
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