Question

x+y+z=30 using only 1,3,5,7,9,11,15 at place of x, y, z.. number can be repeated

Answer 1

To be Frank....
i dont think any Single Character Combination Works...

But i will Do it any way...

1+3+5=9
1+3+7=11
1+3+9=13
1+3+11=15
1+3+15=19
3+5+7=15
3+5+9=17
3+5+11=19
3+5+15=23
5+7+9=21
5+7+11=23
5+7+15=27
7+9+11=27
7+9+15=31
9+11+15=35

And Now For Repetions...

Sorry But i Still Dont think it will work....

Sorry Been a Bit busy...

So there you have it...

Hope it Helps...