Add or Subtract as Indicated and Write the Result in Standard

question 123

Multiple Choice

Add or subtract as indicated and write the result in standard form.
- $$6 \mathrm { i } + ( - 9 - \mathrm { i } )$$

• A) \(- 9 + 5 i\)
• B) \(- 9 + 7 i\)
• C) \(9 - 5 \mathrm { i }\)
• D) \(9 - 7 \mathrm { i }\)

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