document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=317516>Question 317516</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the following set of equation by both graphing method and also by addition.\r<BR>\n" );
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document.write( "     Prepare a paragraph comparing and contrasting the two methods.\r<BR>\n" );
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document.write( "     3x+4y  =  -5\r<BR>\n" );
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document.write( "     5x+6y  =   -7\r<BR>\n" );
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document.write( "Please :) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #227377 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=227377\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  Solve the following set of equation by both graphing method and also by addition. <BR>\n" );
document.write( "Prepare a paragraph comparing and contrasting the two methods. \r<BR>\n" );
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document.write( "3x+4y = -5 <BR>\n" );
document.write( "5x+6y = -7 <BR>\n" );
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document.write( "Solve by elimination:<BR>\n" );
document.write( "Multiply thru 1st equation by 5<BR>\n" );
document.write( "Multiply thru 2nd equation by 3<BR>\n" );
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document.write( "15x + 18y = -21<BR>\n" );
document.write( "15x + 20y = -25<BR>\n" );
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document.write( "Subtract from 1st from 2nd and sol solve for \"y\":<BR>\n" );
document.write( "y = -4<BR>\n" );
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document.write( "Substitute into 3x+4y=-6 to solve for \"x\":<BR>\n" );
document.write( "3x +4(-4) = -6<BR>\n" );
document.write( "3x = 10<BR>\n" );
document.write( "x = 2<BR>\n" );
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document.write( "3x+4y = -5 <BR>\n" );
document.write( "5x+6y = -7 <BR>\n" );
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document.write( "Solve by graphing:<BR>\n" );
document.write( "y = (-3/4)x -(5/4)<BR>\n" );
document.write( "Let x = 0, then y = -5/4 giving you point (0,-5/4)<BR>\n" );
document.write( "Let x = 4, then y = -17/4 giving you point (4,-17/4)<BR>\n" );
document.write( "Plot the points and draw a line thru them.<BR>\n" );
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document.write( "Solve by graphing:<BR>\n" );
document.write( "y = (-5/6)x -(7/6)<BR>\n" );
document.write( "Let x = 0, then y = -7/6 giving you point (0,-17/6)<BR>\n" );
document.write( "Let x = 6, then y = -37/6 giving you point (6,-36/6)<BR>\n" );
document.write( "Plot the points and draw a line thru them.<BR>\n" );
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document.write( "Graph and find the point is intersection; it should be (2,-4)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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