This chemical equation is impossible to balance, right?

Question

It's in my textbook, and I've been spending quite a while trying to balance it. Not wanting to give up though. I'm starting to believe the text wrote the equation incorrectly.
Will you confirm?

Ag2CO3 --> Ag2O + CO2 + O2

LS: Ag - 2, C - 1, O - 3
RS: Ag - 2, C - 1, O - 5

Answer 1

You're right - as written it's impossible to balance. But if you write

a(Ag2CO3) --> b(Ag2O) + c(CO2) + d(O2) you can balance it with the values
a=1, b=1, c=1, d=0. Meaning that the reaction doesn't generate any oxygen. The carbonate falls apart into the oxide and gaseous CO2.

Answer 2

I agree-I think the book is incorrect. No matter what you do, you end up with way too many oxygens on the right side.