(8+7i)-(12-4i)=

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Solution for (8+7i)-(12-4i)= equation:


Simplifying
(8 + 7i) + -1(12 + -4i) = 0

Remove parenthesis around (8 + 7i)
8 + 7i + -1(12 + -4i) = 0
8 + 7i + (12 * -1 + -4i * -1) = 0
8 + 7i + (-12 + 4i) = 0

Reorder the terms:
8 + -12 + 7i + 4i = 0

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

Combine like terms: 7i + 4i = 11i
-4 + 11i = 0

Solving
-4 + 11i = 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 + 11i = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 11i = 0 + 4
11i = 0 + 4

Combine like terms: 0 + 4 = 4
11i = 4

Divide each side by '11'.
i = 0.3636363636

Simplifying
i = 0.3636363636

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