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

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


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

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

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

Combine like terms: 9 + 1 = 10
10 + 6i + 1i = 0

Combine like terms: 6i + 1i = 7i
10 + 7i = 0

Solving
10 + 7i = 0

Solving for variable 'i'.

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

Add '-10' to each side of the equation.
10 + -10 + 7i = 0 + -10

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

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

Divide each side by '7'.
i = -1.428571429

Simplifying
i = -1.428571429

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