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

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


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

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

Reorder the terms:
5 + 5 + 7i + -1i = 0

Combine like terms: 5 + 5 = 10
10 + 7i + -1i = 0

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

Solving
10 + 6i = 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 + 6i = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 6i = 0 + -10
6i = 0 + -10

Combine like terms: 0 + -10 = -10
6i = -10

Divide each side by '6'.
i = -1.666666667

Simplifying
i = -1.666666667

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