3[x-4]=x

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


Simplifying
3[x + -4] = x

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

Solving
-12 + 3x = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-12 + 3x + -1x = x + -1x

Combine like terms: 3x + -1x = 2x
-12 + 2x = x + -1x

Combine like terms: x + -1x = 0
-12 + 2x = 0

Add '12' to each side of the equation.
-12 + 12 + 2x = 0 + 12

Combine like terms: -12 + 12 = 0
0 + 2x = 0 + 12
2x = 0 + 12

Combine like terms: 0 + 12 = 12
2x = 12

Divide each side by '2'.
x = 6

Simplifying
x = 6

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