(-1+2i)+(6-9i)=

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Solution for (-1+2i)+(6-9i)= equation:


Simplifying
(-1 + 2i) + (6 + -9i) = 0

Remove parenthesis around (-1 + 2i)
-1 + 2i + (6 + -9i) = 0

Remove parenthesis around (6 + -9i)
-1 + 2i + 6 + -9i = 0

Reorder the terms:
-1 + 6 + 2i + -9i = 0

Combine like terms: -1 + 6 = 5
5 + 2i + -9i = 0

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

Solving
5 + -7i = 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 + -7i = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -7i = 0 + -5
-7i = 0 + -5

Combine like terms: 0 + -5 = -5
-7i = -5

Divide each side by '-7'.
i = 0.7142857143

Simplifying
i = 0.7142857143

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