-0.4x=12

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Solution for -0.4x=12 equation: 


Simplifying
-0.4x = 12

Solving
-0.4x = 12

Solving for variable 'x'.

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

Divide each side by '-0.4'.
x = -30

Simplifying
x = -30

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