Answer:
[tex]\boxed{\text{-4.25 kJ}}[/tex]
Explanation:
ΔE = q + w
By convention, anything leaving the system is negative and anything entering the system is positive.
Data:
q = -3.30 kJ
w = -950 J = -0.950 kJ
Calculation
ΔE = -3.30 - 0.950 = -4.25 kJ
[tex]\text{The change in E is }\boxed{\textbf{-4.25 kJ}}[/tex]
