Answer :
Answer:
9 - i.
Step-by-step explanation:
Add the real and imaginary parts separately:
12 - 5i + -3 + 4i
= 12 + -3 - 5i + 4i
= 9 - i.
Answer:
9 - i.
Step-by-step explanation:
Add the real and imaginary parts separately:
12 - 5i + -3 + 4i
= 12 + -3 - 5i + 4i
= 9 - i.