Final answer:
The addition expression with the sum 8−3i is −1−7i.
Step-by-step explanation:
To determine which addition expression has the sum 8−3i, we need to find an expression that, when added, gives us a sum of 8−3i.
We can eliminate option A) 9+2i because the sum of the real parts would be 9+8=17.
We can also eliminate option B) 1−i because the sum of the imaginary parts would be -3-1=-4.
Option C) 9+4i does not work either because the sum of the imaginary parts would be 4-3=1.
By process of elimination, the correct answer is option D) −1−7i, as the sum of the real parts is -1 and the sum of the imaginary parts is -7.