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Answer: 7i + 9
Step-by-step explanation:
(7 + 5i) - (3 - 4i) - (-5 + 2i)
We need to start by re-arrange the terms
(5i + 7) - (4i + 3) - (5 + 2i)
Then we need to distribute
5i + 7 + 4i - 3 - (-5 + 2i)
Once again, we need to re-arrange the terms
5i + 7 + 4i - 3 - (2i - 5)
Again, we need to redistribute
5i + 7 + 4i - 3 - 2i + 5
Now add
5i + 9 + 4i - 2i
= 7i + 9
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~Garebear
