Is this solvable?

[Algebruh]

First off, I apologise for knowing so little I don't even know where I should be posting this problem. Secondly, I'm not sure if this is enough to go off in order to be solved. Anyway, here it is:

a+b+c=1

a2.51-(b+c)
Is equal to
b2.25-(a+c)
Is equal to
c15-(a+b)

What are a, b and c?
Does that make sense? - I have no idea what to do here. Thanks for your input!

 

[Harry_the_cat]

Is this what you are saying:

a+b+c=1
2.51a-(b+c)=2.25b-(a+c) =15c-(a+b)
and you want to find a, b and c?

 

[Algebruh]

That's correct - I wasn't sure if that was a math faux pas to put more than one equals sign in an equation.

Yes, that's what I meant, Harry.