9(I+2)=3(I-2)

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Solution for 9(I+2)=3(I-2) equation:


Simplifying
9(I + 2) = 3(I + -2)

Reorder the terms:
9(2 + I) = 3(I + -2)
(2 * 9 + I * 9) = 3(I + -2)
(18 + 9I) = 3(I + -2)

Reorder the terms:
18 + 9I = 3(-2 + I)
18 + 9I = (-2 * 3 + I * 3)
18 + 9I = (-6 + 3I)

Solving
18 + 9I = -6 + 3I

Solving for variable 'I'.

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

Add '-3I' to each side of the equation.
18 + 9I + -3I = -6 + 3I + -3I

Combine like terms: 9I + -3I = 6I
18 + 6I = -6 + 3I + -3I

Combine like terms: 3I + -3I = 0
18 + 6I = -6 + 0
18 + 6I = -6

Add '-18' to each side of the equation.
18 + -18 + 6I = -6 + -18

Combine like terms: 18 + -18 = 0
0 + 6I = -6 + -18
6I = -6 + -18

Combine like terms: -6 + -18 = -24
6I = -24

Divide each side by '6'.
I = -4

Simplifying
I = -4

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