x+(-4x)=-9

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Solution for x+(-4x)=-9 equation: 


Simplifying
x + (-4x) = -9

Combine like terms: x + (-4x) = -3x
-3x = -9

Solving
-3x = -9

Solving for variable 'x'.

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

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

Simplifying
x = 3

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