2x+x=-2

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Solution for 2x+x=-2 equation: 


Simplifying
2x + x = -2

Combine like terms: 2x + x = 3x
3x = -2

Solving
3x = -2

Solving for variable 'x'.

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

Divide each side by '3'.
x = -0.6666666667

Simplifying
x = -0.6666666667

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