document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=170663>Question 170663</A>: <I><SPAN STYLE=\"word-break: break-all;\"> need help evaluating x=-4 , y=6, z=-8          \r<BR>\n" );
document.write( "\n" );
document.write( "2x+3y      \r<BR>\n" );
document.write( "\n" );
document.write( "5xy-z        \r<BR>\n" );
document.write( "\n" );
document.write( "-z+2x\r<BR>\n" );
document.write( "\n" );
document.write( "_______________________________\r<BR>\n" );
document.write( "\n" );
document.write( "p-12= -15     \r<BR>\n" );
document.write( "\n" );
document.write( "-11= -4+d      \r<BR>\n" );
document.write( "\n" );
document.write( "-1.6k= -15      <BR>\n" );
document.write( "not from any textbook that I know of, from a 10 page worksheet </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #125992 by </B><A HREF=/tutors/aboutme.mpl?userid=midwood_trail><B>midwood_trail(310)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=midwood_trail><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=125992\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Evaluate: \r<BR>\n" );
document.write( "\n" );
document.write( "x = -4 , y = 6, z = -8 <BR>\n" );
document.write( "2x+3y <BR>\n" );
document.write( "5xy-z <BR>\n" );
document.write( "-z+2x \r<BR>\n" );
document.write( "\n" );
document.write( "Replace x, y and z with their given values in each expression and simplify.\r<BR>\n" );
document.write( "\n" );
document.write( "I will do one of them.\r<BR>\n" );
document.write( "\n" );
document.write( "2x + 3y\r<BR>\n" );
document.write( "\n" );
document.write( "Let x = -4 and Let y = 6\r<BR>\n" );
document.write( "\n" );
document.write( "Then 2(-4) + 3(6) = -8 + 18 = 10\r<BR>\n" );
document.write( "\n" );
document.write( "Can you do the rest now?<BR>\n" );
document.write( "_______________________________ \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "p-12= -15 <BR>\n" );
document.write( "-11= -4+d <BR>\n" );
document.write( "-1.6k= -15 \r<BR>\n" );
document.write( "\n" );
document.write( "Here, you need to solve each equation for the given variable.\r<BR>\n" );
document.write( "\n" );
document.write( "I will do one of them.\r<BR>\n" );
document.write( "\n" );
document.write( "p - 12 = -15\r<BR>\n" );
document.write( "\n" );
document.write( "Add 12 to both sides.\r<BR>\n" );
document.write( "\n" );
document.write( "p = 12 - 15\r<BR>\n" );
document.write( "\n" );
document.write( "p = -3\r<BR>\n" );
document.write( "\n" );
document.write( "Can you do the rest now?\r<BR>\n" );
document.write( "\n" );
document.write( "I received your e-mail.\r<BR>\n" );
document.write( "\n" );
document.write( "Here is the full reply:\r<BR>\n" );
document.write( "\n" );
document.write( "Evaluate using: x = -4 , y = 6, z = -8 \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "2x+3y...Replace x with -4 and y with 6\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "2(-4) + 3(6) = -8 + 18 = 10\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "==================\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "5xy-z...5(-4) times (6) -(-8) = 5(-24) + 8 =  -120 + 8 = -112\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "==================\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "-z+2x...-(-8) + 2(-4) = 8 - 8 = 0\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Did you follow?\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "_______________________________ \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "When crossing the equal sign, change the sign infront of the numbers to the opposite ONLY when adding and subtracting.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "p -12 = -15...We add 12 to both sides.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "p = +12 - 15\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "p = -3\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "======================== \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "-11= -4 + d...Here, we add 4 to both sides.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "-11 + 4 = d\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "-7 = d\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "==================== \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "-1.6k= -15....Here, we apply the division property or rule of algebra.  To find k, divide both sides by the coefficient of k, which is the decimal number -1.6 in this question.  \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "So, k = -15 divided by -1.6\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Then, k =  9.375\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Did you follow?\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );