Write the first law when heat is released by the system and work is done on it

The same question, asked 2 times: May 2022 S1*, 15 May 2023 S2. Every wording below, oldest first.

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Question 1
May 2022 S1
91 $If Q is the heat liberated from the system and W is the work done on the system then first law of thermodynamics can be written as,$
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Question 2
15 May 2023 S2
97 $In a particular reaction 'x' kJ of heat is released by the system and 'y' kJ of work done is done on the system. What is internal energy change?$
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