<p>If X Y and Z are integers which of the following is NOT a possible value for 2x + 4y + 6z</p>
<p>A 4
B 8
C12
D 26
E 29</p>
<p>Please explain what an integer is too. Thank you!</p>
<p>An integer is a whole number, like 3, 16, or 5000. It can positive, negative, or zero </p>
<p>Integers are never fractions nor decimals. </p>
<p>Here’s a hint</p>
<p>2x + 4y + 6z</p>
<p>If x = 4 … 2x = 8
If x = 3 … 2x = 6</p>
<p>Can 2x ever be odd? 4y? 6z?</p>
<p>Now look at the choices:</p>
<p>A 4
B 8
C12
D 26
E 29</p>
<p>Anything … odd? :)</p>
<p>Wow, thank a lot! 
Your technique of explaining is amusing. Thank you!</p>
<p>You can also factor a 2 out of 2x + 4y + 6z
which becomes 2(x + 2y + 3z), and now you know the number must be a multiple of 2 since the 2 is in the front. 29 is NOT a multiple of 2, therfore it can never be 29.</p>
<p>The number needs to be divisble by atleast 2…</p>
<p>Only one that isn’t is 29.</p>
<p>Also, integer is just a whole number from -infinity to + infinity (infinity not included)</p>