(5-2i)+(3+9i)=

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Solution for (5-2i)+(3+9i)= equation:


Simplifying
(5 + -2i) + (3 + 9i) = 0

Remove parenthesis around (5 + -2i)
5 + -2i + (3 + 9i) = 0

Remove parenthesis around (3 + 9i)
5 + -2i + 3 + 9i = 0

Reorder the terms:
5 + 3 + -2i + 9i = 0

Combine like terms: 5 + 3 = 8
8 + -2i + 9i = 0

Combine like terms: -2i + 9i = 7i
8 + 7i = 0

Solving
8 + 7i = 0

Solving for variable 'i'.

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

Add '-8' to each side of the equation.
8 + -8 + 7i = 0 + -8

Combine like terms: 8 + -8 = 0
0 + 7i = 0 + -8
7i = 0 + -8

Combine like terms: 0 + -8 = -8
7i = -8

Divide each side by '7'.
i = -1.142857143

Simplifying
i = -1.142857143

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