(12+14i)-(-9-14i)=

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Solution for (12+14i)-(-9-14i)= equation:


Simplifying
(12 + 14i) + -1(-9 + -14i) = 0

Remove parenthesis around (12 + 14i)
12 + 14i + -1(-9 + -14i) = 0
12 + 14i + (-9 * -1 + -14i * -1) = 0
12 + 14i + (9 + 14i) = 0

Reorder the terms:
12 + 9 + 14i + 14i = 0

Combine like terms: 12 + 9 = 21
21 + 14i + 14i = 0

Combine like terms: 14i + 14i = 28i
21 + 28i = 0

Solving
21 + 28i = 0

Solving for variable 'i'.

Move all terms containing i to the left, all other terms to the right.

Add '-21' to each side of the equation.
21 + -21 + 28i = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 28i = 0 + -21
28i = 0 + -21

Combine like terms: 0 + -21 = -21
28i = -21

Divide each side by '28'.
i = -0.75

Simplifying
i = -0.75

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