3[x-4]=6

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Solution for 3[x-4]=6 equation: 


Simplifying
3[x + -4] = 6

Reorder the terms:
3[-4 + x] = 6
[-4 * 3 + x * 3] = 6
[-12 + 3x] = 6

Solving
-12 + 3x = 6

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 3x = 6 + 12

Combine like terms: -12 + 12 = 0
0 + 3x = 6 + 12
3x = 6 + 12

Combine like terms: 6 + 12 = 18
3x = 18

Divide each side by '3'.
x = 6

Simplifying
x = 6

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