7i-(9-4i)=

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Solution for 7i-(9-4i)= equation:


Simplifying
7i + -1(9 + -4i) = 0
7i + (9 * -1 + -4i * -1) = 0
7i + (-9 + 4i) = 0

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

Combine like terms: 7i + 4i = 11i
-9 + 11i = 0

Solving
-9 + 11i = 0

Solving for variable 'i'.

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

Add '9' to each side of the equation.
-9 + 9 + 11i = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 11i = 0 + 9
11i = 0 + 9

Combine like terms: 0 + 9 = 9
11i = 9

Divide each side by '11'.
i = 0.8181818182

Simplifying
i = 0.8181818182

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