(5-4i)-(12+9i)=0

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Solution for (5-4i)-(12+9i)=0 equation:


Simplifying
(5 + -4i) + -1(12 + 9i) = 0

Remove parenthesis around (5 + -4i)
5 + -4i + -1(12 + 9i) = 0
5 + -4i + (12 * -1 + 9i * -1) = 0
5 + -4i + (-12 + -9i) = 0

Reorder the terms:
5 + -12 + -4i + -9i = 0

Combine like terms: 5 + -12 = -7
-7 + -4i + -9i = 0

Combine like terms: -4i + -9i = -13i
-7 + -13i = 0

Solving
-7 + -13i = 0

Solving for variable 'i'.

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

Add '7' to each side of the equation.
-7 + 7 + -13i = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -13i = 0 + 7
-13i = 0 + 7

Combine like terms: 0 + 7 = 7
-13i = 7

Divide each side by '-13'.
i = -0.5384615385

Simplifying
i = -0.5384615385

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