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

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


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

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

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

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

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

Solving
12i = 0

Solving for variable 'i'.

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

Divide each side by '12'.
i = 0

Simplifying
i = 0

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