Add or subtract as indicated and write the result in standard form.
-$7 \mathrm { i } - ( - 9 - \mathrm { i } )$
A) $9 + 8 \mathrm { i }$
B) $- 9 - 8 \mathrm { i }$
C) $9 - 6 i$
D) $- 9 + 6 i$

Name: Add or subtract as indicated and write the result in standard form. -$7 \mathrm { i } - ( - 9 - \mathrm { i } )$ A) $9 + 8 \mathrm { i }$ B) $- 9 - 8 \mathrm { i }$ C) $9 - 6 i$ D) $- 9 + 6 i$
Brand: Quizplus
Rating: 4.9 (40 reviews)

Question

Quizplus · Accepted Answer

Subtracting the given complex numbers: $7i - (-9-i) = 7i + 9 + i = 9 + 8i$, which is in standard form.

Add or Subtract as Indicated and Write the Result in Standard