document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=15994>Question 15994</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm getting confused in the first step of equations with variables on both sides. For example: 7c- 4=9c- 11 I know that you put the variables together but I don't know when to add , subtract, multiply or divide. Then if I do get help on it and get to the next step I'm getting confuse so please help me understand how to do these. Thanks,Kristen </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #7862 by </B><A HREF=/tutors/aboutme.mpl?userid=elima><B>elima(1433)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=elima><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=7862\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7c- 4=9c- 11 <BR>\n" );
document.write( "You are not alone with this. Many of my students are very confused when it comes to the negatives and positives.\r<BR>\n" );
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document.write( "In this example you would subtract 9c from both sides because it is a positive 9.<BR>\n" );
document.write( "Lets say the problem was:<BR>\n" );
document.write( "7c-4=11-9c<BR>\n" );
document.write( "Then you would add 9c to both sides because it is a negative 9c.<BR>\n" );
document.write( "Lets get back to the original problem;<BR>\n" );
document.write( "7c-4=9c-11<BR>\n" );
document.write( "First subtract both sides by 9c;<BR>\n" );
document.write( "7c-4-9c=9c-11-9c<BR>\n" );
document.write( "when doing that it cancels out the 9c on the right side and puts it on the left with the 7c.<BR>\n" );
document.write( "Now you have 7c-4-9c=11<BR>\n" );
document.write( "You can add sibtract the 7c and 9c since they are like terms;<BR>\n" );
document.write( "-2c-4=11<BR>\n" );
document.write( "Now we are going to add 4 to both sides since it is a -4 in the original problem;<BR>\n" );
document.write( "-2c-4+4=-11+4<BR>\n" );
document.write( "That cancels out the 4 on the right side and puts it with the 11;<BR>\n" );
document.write( "Now the equation is;<BR>\n" );
document.write( "-2c=-11+4<BR>\n" );
document.write( "We add -11+4;<BR>\n" );
document.write( "-2c=-7<BR>\n" );
document.write( "Now we will divide both sides by -2 since it is being multiplied by the c;<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-2c%2F-2 ALIGN=MIDDLE  ALT=\"-2c%2F-2\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-7%2F-2 ALIGN=MIDDLE  ALT=\"-7%2F-2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "c=3.5<BR>\n" );
document.write( "I hope this helps some!<BR>\n" );
document.write( "=)<BR>\n" );
document.write( " </SPAN>\n" );
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