18i+4=16i-9

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Solution for 18i+4=16i-9 equation:


Simplifying
18i + 4 = 16i + -9

Reorder the terms:
4 + 18i = 16i + -9

Reorder the terms:
4 + 18i = -9 + 16i

Solving
4 + 18i = -9 + 16i

Solving for variable 'i'.

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

Add '-16i' to each side of the equation.
4 + 18i + -16i = -9 + 16i + -16i

Combine like terms: 18i + -16i = 2i
4 + 2i = -9 + 16i + -16i

Combine like terms: 16i + -16i = 0
4 + 2i = -9 + 0
4 + 2i = -9

Add '-4' to each side of the equation.
4 + -4 + 2i = -9 + -4

Combine like terms: 4 + -4 = 0
0 + 2i = -9 + -4
2i = -9 + -4

Combine like terms: -9 + -4 = -13
2i = -13

Divide each side by '2'.
i = -6.5

Simplifying
i = -6.5

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