(9-3i)-(1+7i)=

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Solution for (9-3i)-(1+7i)= equation:


Simplifying
(9 + -3i) + -1(1 + 7i) = 0

Remove parenthesis around (9 + -3i)
9 + -3i + -1(1 + 7i) = 0
9 + -3i + (1 * -1 + 7i * -1) = 0
9 + -3i + (-1 + -7i) = 0

Reorder the terms:
9 + -1 + -3i + -7i = 0

Combine like terms: 9 + -1 = 8
8 + -3i + -7i = 0

Combine like terms: -3i + -7i = -10i
8 + -10i = 0

Solving
8 + -10i = 0

Solving for variable 'i'.

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

Add '-8' to each side of the equation.
8 + -8 + -10i = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -10i = 0 + -8
-10i = 0 + -8

Combine like terms: 0 + -8 = -8
-10i = -8

Divide each side by '-10'.
i = 0.8

Simplifying
i = 0.8

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