[-x]-39=12-4x

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Solution for [-x]-39=12-4x equation:


Simplifying
[-1x] + -39 = 12 + -4x

Reorder the terms:
-39 + [-1x] = 12 + -4x

Solving
-39 + [-1x] = 12 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-39 + [-1x] + 4x = 12 + -4x + 4x

Combine like terms: [-1x] + 4x = 3x
-39 + 3x = 12 + -4x + 4x

Combine like terms: -4x + 4x = 0
-39 + 3x = 12 + 0
-39 + 3x = 12

Add '39' to each side of the equation.
-39 + 39 + 3x = 12 + 39

Combine like terms: -39 + 39 = 0
0 + 3x = 12 + 39
3x = 12 + 39

Combine like terms: 12 + 39 = 51
3x = 51

Divide each side by '3'.
x = 17

Simplifying
x = 17

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