(3x-9)2=12

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Solution for (3x-9)2=12 equation:


Simplifying
(3x + -9) * 2 = 12

Reorder the terms:
(-9 + 3x) * 2 = 12

Reorder the terms for easier multiplication:
2(-9 + 3x) = 12
(-9 * 2 + 3x * 2) = 12
(-18 + 6x) = 12

Solving
-18 + 6x = 12

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + 6x = 12 + 18

Combine like terms: -18 + 18 = 0
0 + 6x = 12 + 18
6x = 12 + 18

Combine like terms: 12 + 18 = 30
6x = 30

Divide each side by '6'.
x = 5

Simplifying
x = 5

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