(-3i+8)-(-7i-5)=

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Solution for (-3i+8)-(-7i-5)= equation:


Simplifying
(-3i + 8) + -1(-7i + -5) = 0

Reorder the terms:
(8 + -3i) + -1(-7i + -5) = 0

Remove parenthesis around (8 + -3i)
8 + -3i + -1(-7i + -5) = 0

Reorder the terms:
8 + -3i + -1(-5 + -7i) = 0
8 + -3i + (-5 * -1 + -7i * -1) = 0
8 + -3i + (5 + 7i) = 0

Reorder the terms:
8 + 5 + -3i + 7i = 0

Combine like terms: 8 + 5 = 13
13 + -3i + 7i = 0

Combine like terms: -3i + 7i = 4i
13 + 4i = 0

Solving
13 + 4i = 0

Solving for variable 'i'.

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

Add '-13' to each side of the equation.
13 + -13 + 4i = 0 + -13

Combine like terms: 13 + -13 = 0
0 + 4i = 0 + -13
4i = 0 + -13

Combine like terms: 0 + -13 = -13
4i = -13

Divide each side by '4'.
i = -3.25

Simplifying
i = -3.25

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