3x=-9x

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Solution for 3x=-9x equation: 


Simplifying
3x = -9x

Solving
3x = -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
3x + 9x = -9x + 9x

Combine like terms: 3x + 9x = 12x
12x = -9x + 9x

Combine like terms: -9x + 9x = 0
12x = 0

Divide each side by '12'.
x = 0

Simplifying
x = 0

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