(9+3i)-(4+5i)=

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Solution for (9+3i)-(4+5i)= equation:


Simplifying
(9 + 3i) + -1(4 + 5i) = 0

Remove parenthesis around (9 + 3i)
9 + 3i + -1(4 + 5i) = 0
9 + 3i + (4 * -1 + 5i * -1) = 0
9 + 3i + (-4 + -5i) = 0

Reorder the terms:
9 + -4 + 3i + -5i = 0

Combine like terms: 9 + -4 = 5
5 + 3i + -5i = 0

Combine like terms: 3i + -5i = -2i
5 + -2i = 0

Solving
5 + -2i = 0

Solving for variable 'i'.

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

Add '-5' to each side of the equation.
5 + -5 + -2i = 0 + -5

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

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

Divide each side by '-2'.
i = 2.5

Simplifying
i = 2.5

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