Question 1036713
<pre><b>
<font color="red">7x</font><font color="blue">+3y</font><font color="green">+4z</font><font color="red">-4x</font><font color="green">+2z<font color="blue">-7y</font>

<font color="red">Combine the red terms, 7x-4x, get 3x</font>
<font color="blue">Combine the blue terms, +3y-7y, get -4y</font>
<font color="green">Combine the green terms, +4z+2z, get +6z</font></font>

Answer:

<font color="red">3x</font><font color="blue">-4y</font><font color="green">+6z</font>

Edwin</pre></b>