#### Fandoms Fangirl

##### New member

- Joined
- Oct 12, 2015

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*[In reference to*

**from 2011.]**__this thread__I'm doing the same problem. Here is the way I thought about it.

a+b=80

d+e=91

So I said

a=39, b=41, d=44, e=47

Then you need a number that works with all these, so it has to be less than 44 and more than 41. So it can be 42 or 43.

But it can't be 42, because then you would get 81 and 89 which are unneeded. So c=43.

And the answer doesn't have multiple solutions, because you would have to change all of the numbers, and you can't equal sidedly change them, like in algebra.

Can someone tell me if I'm right? I am trying to do the same problem!

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