6i-9=-21

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Solution for 6i-9=-21 equation:


Simplifying
6i + -9 = -21

Reorder the terms:
-9 + 6i = -21

Solving
-9 + 6i = -21

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 + 6i = -21 + 9

Combine like terms: -9 + 9 = 0
0 + 6i = -21 + 9
6i = -21 + 9

Combine like terms: -21 + 9 = -12
6i = -12

Divide each side by '6'.
i = -2

Simplifying
i = -2

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