12-4x=-x

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Solution for 12-4x=-x equation:


Simplifying
12 + -4x = -1x

Solving
12 + -4x = -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
12 + -4x + x = -1x + x

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

Combine like terms: -1x + x = 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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