(-8-9i)-(2+7i)+(-9-9i)=

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Solution for (-8-9i)-(2+7i)+(-9-9i)= equation:


Simplifying
(-8 + -9i) + -1(2 + 7i) + (-9 + -9i) = 0

Remove parenthesis around (-8 + -9i)
-8 + -9i + -1(2 + 7i) + (-9 + -9i) = 0
-8 + -9i + (2 * -1 + 7i * -1) + (-9 + -9i) = 0
-8 + -9i + (-2 + -7i) + (-9 + -9i) = 0

Remove parenthesis around (-9 + -9i)
-8 + -9i + -2 + -7i + -9 + -9i = 0

Reorder the terms:
-8 + -2 + -9 + -9i + -7i + -9i = 0

Combine like terms: -8 + -2 = -10
-10 + -9 + -9i + -7i + -9i = 0

Combine like terms: -10 + -9 = -19
-19 + -9i + -7i + -9i = 0

Combine like terms: -9i + -7i = -16i
-19 + -16i + -9i = 0

Combine like terms: -16i + -9i = -25i
-19 + -25i = 0

Solving
-19 + -25i = 0

Solving for variable 'i'.

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

Add '19' to each side of the equation.
-19 + 19 + -25i = 0 + 19

Combine like terms: -19 + 19 = 0
0 + -25i = 0 + 19
-25i = 0 + 19

Combine like terms: 0 + 19 = 19
-25i = 19

Divide each side by '-25'.
i = -0.76

Simplifying
i = -0.76

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