Calculate Enthalpy of Reaction (∆Hrxn) By Reaction Addition Method 001

What is the enthalpy of the reaction (∆Hrxn):
2S (s) + 3O2 (g) → 2SO3 (g)
if
S (s) + O2 (g) → SO2 (g) ∆H1 = -296.8 kJ
and
SO2 (g) + O2 (g) → 2SO3 (g) ∆H2 = -198.4 kJ

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