2[x-1]=4

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Solution for 2[x-1]=4 equation: 


Simplifying
2[x + -1] = 4

Reorder the terms:
2[-1 + x] = 4
[-1 * 2 + x * 2] = 4
[-2 + 2x] = 4

Solving
-2 + 2x = 4

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 2x = 4 + 2

Combine like terms: -2 + 2 = 0
0 + 2x = 4 + 2
2x = 4 + 2

Combine like terms: 4 + 2 = 6
2x = 6

Divide each side by '2'.
x = 3

Simplifying
x = 3

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