Question 171313
<font size = 6 color = "red"><b>Edwin's solution:</b></font>
Create a 3x3 magic square using the number 3,5,7,9,11,13,15,17,and 19
<pre><font size = 4 color = "indigo"><b>

| 5 |15|13|
----------
|19 |11| 3|
----------
| 9 | 7|17|

All 3 rows add up to 33:

5+15+13=33
19+11+3=33
 9+7+17=33

All 3 columns add up to 33:

 5+19+9=33
15+11+7=33
13+3+17=33

Both diagonals add up to 33:

5+11+17=33
13+11+9=33

Edwin</pre>