Question

simplify.
$(-7i + 1) + (9i - 1)$
write your answer in the form $a + bi$.

Explanation:

Step1: Group real and imaginary terms

$(-7i + 9i) + (1 - 1)$

Step2: Combine like terms

$(-7 + 9)i + (1 - 1)$

Step3: Calculate sums

$2i + 0$

Answer:

$0 + 2i$