document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=389334>Question 389334</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1. It takes Bill 6 hours longer than John to plow a certain field. Together they can plow it in 4 hours. How long would it take each man alone to plow the field?\r<BR>\n" );
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document.write( "2. Using a graphing calculator find the roots of the equation to the nearest hundredth:<BR>\n" );
document.write( "x^7+x^5-2x^3+3x^2-1=0 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #275885 by </B><A HREF=/tutors/aboutme.mpl?userid=haileytucki><B>haileytucki(390)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=haileytucki><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=haileytucki><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=275885\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "x+y=4_x=y+6\r<BR>\n" );
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document.write( "Since y does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting y from both sides.<BR>\n" );
document.write( "x=-y+4_x=y+6\r<BR>\n" );
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document.write( "Replace all occurrences of x with the solution found by solving the last equation for x.  In this case, the value substituted is -y+4.<BR>\n" );
document.write( "x=-y+4_(-y+4)=y+6\r<BR>\n" );
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document.write( "Remove the parentheses around the expression -y+4.<BR>\n" );
document.write( "x=-y+4_-y+4=y+6\r<BR>\n" );
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document.write( "Since y contains the variable to solve for, move it to the left-hand side of the equation by subtracting y from both sides.<BR>\n" );
document.write( "x=-y+4_-y+4-y=6\r<BR>\n" );
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document.write( "Since -y and -y are like terms, subtract y from -y to get -2y.<BR>\n" );
document.write( "x=-y+4_-2y+4=6\r<BR>\n" );
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document.write( "Since 4 does not contain the variable to solve for, move it to the right-hand side of the equation by subtracting 4 from both sides.<BR>\n" );
document.write( "x=-y+4_-2y=-4+6\r<BR>\n" );
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document.write( "Add 6 to -4 to get 2.<BR>\n" );
document.write( "x=-y+4_-2y=2\r<BR>\n" );
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document.write( "Divide each term in the equation by -2.<BR>\n" );
document.write( "x=-y+4_-(2y)/(-2)=(2)/(-2)\r<BR>\n" );
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document.write( "Simplify the left-hand side of the equation by canceling the common factors.<BR>\n" );
document.write( "x=-y+4_y=(2)/(-2)\r<BR>\n" );
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document.write( "Simplify the right-hand side of the equation by simplifying each term.<BR>\n" );
document.write( "x=-y+4_y=-1\r<BR>\n" );
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document.write( "Replace all occurrences of y with the solution found by solving the last equation for y.  In this case, the value substituted is -1.<BR>\n" );
document.write( "x=-(-1)+4_y=-1\r<BR>\n" );
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document.write( "Multiply -1 by each term inside the parentheses.<BR>\n" );
document.write( "x=1+4_y=-1\r<BR>\n" );
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document.write( "Add 4 to 1 to get 5.<BR>\n" );
document.write( "x=5_y=-1\r<BR>\n" );
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document.write( "This is the solution to the system of equations.<BR>\n" );
document.write( "x=5_y=-1\r<BR>\n" );
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document.write( "It would take John 5 hours to plow the field, and Bill (5+6 hours) 11 hours to plow the field. </SPAN>\n" );
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