What is the value of (–7 + 3i) – (2 – 6i)?

Subtract the real and imaginary parts separately: (–7 + 3i) – (2 – 6i) = –7 + 3i – 2 + 6i. The real parts give –7 – 2 = –9, and the imaginary parts give 3i + 6i = 9i. The result is –9 + 9i, choice A.

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