Calculate delta h rxn for the following reaction?

Calculate delta h rxn for the following reaction:
CaO(s)+CO2(g)-->CaCO3 (s)
Use the following reactions and given delta h's.
Ca(s)+CO2(g)+1/2O2-->CaCO3 (s) delta h= -812.8 kJ
2Ca(s)+O2(g)-->2CaO(s) delta h= -1269.8 kJ
Express your answer using four significant figures.
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