7i-4+7i+9=

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Solution for 7i-4+7i+9= equation:


Simplifying
7i + -4 + 7i + 9 = 0

Reorder the terms:
-4 + 9 + 7i + 7i = 0

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

Combine like terms: 7i + 7i = 14i
5 + 14i = 0

Solving
5 + 14i = 0

Solving for variable 'i'.

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

Add '-5' to each side of the equation.
5 + -5 + 14i = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 14i = 0 + -5
14i = 0 + -5

Combine like terms: 0 + -5 = -5
14i = -5

Divide each side by '14'.
i = -0.3571428571

Simplifying
i = -0.3571428571

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