4[x+3]=x

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


Simplifying
4[x + 3] = x

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

Solving
12 + 4x = 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 + 4x + -1x = x + -1x

Combine like terms: 4x + -1x = 3x
12 + 3x = x + -1x

Combine like terms: x + -1x = 0
12 + 3x = 0

Add '-12' to each side of the equation.
12 + -12 + 3x = 0 + -12

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

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

Divide each side by '3'.
x = -4

Simplifying
x = -4

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