(5+7i)-(9-2i)=

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Solution for (5+7i)-(9-2i)= equation:


Simplifying
(5 + 7i) + -1(9 + -2i) = 0

Remove parenthesis around (5 + 7i)
5 + 7i + -1(9 + -2i) = 0
5 + 7i + (9 * -1 + -2i * -1) = 0
5 + 7i + (-9 + 2i) = 0

Reorder the terms:
5 + -9 + 7i + 2i = 0

Combine like terms: 5 + -9 = -4
-4 + 7i + 2i = 0

Combine like terms: 7i + 2i = 9i
-4 + 9i = 0

Solving
-4 + 9i = 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 + 9i = 0 + 4

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

Combine like terms: 0 + 4 = 4
9i = 4

Divide each side by '9'.
i = 0.4444444444

Simplifying
i = 0.4444444444

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