(12+7i)+(-8-i)=0

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Solution for (12+7i)+(-8-i)=0 equation:


Simplifying
(12 + 7i) + (-8 + -1i) = 0

Remove parenthesis around (12 + 7i)
12 + 7i + (-8 + -1i) = 0

Remove parenthesis around (-8 + -1i)
12 + 7i + -8 + -1i = 0

Reorder the terms:
12 + -8 + 7i + -1i = 0

Combine like terms: 12 + -8 = 4
4 + 7i + -1i = 0

Combine like terms: 7i + -1i = 6i
4 + 6i = 0

Solving
4 + 6i = 0

Solving for variable 'i'.

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

Add '-4' to each side of the equation.
4 + -4 + 6i = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 6i = 0 + -4
6i = 0 + -4

Combine like terms: 0 + -4 = -4
6i = -4

Divide each side by '6'.
i = -0.6666666667

Simplifying
i = -0.6666666667

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