(4-2i)-(-5+4i)=

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Solution for (4-2i)-(-5+4i)= equation:


Simplifying
(4 + -2i) + -1(-5 + 4i) = 0

Remove parenthesis around (4 + -2i)
4 + -2i + -1(-5 + 4i) = 0
4 + -2i + (-5 * -1 + 4i * -1) = 0
4 + -2i + (5 + -4i) = 0

Reorder the terms:
4 + 5 + -2i + -4i = 0

Combine like terms: 4 + 5 = 9
9 + -2i + -4i = 0

Combine like terms: -2i + -4i = -6i
9 + -6i = 0

Solving
9 + -6i = 0

Solving for variable 'i'.

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

Add '-9' to each side of the equation.
9 + -9 + -6i = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -6i = 0 + -9
-6i = 0 + -9

Combine like terms: 0 + -9 = -9
-6i = -9

Divide each side by '-6'.
i = 1.5

Simplifying
i = 1.5

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