2X+X=400

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Solution for 2X+X=400 equation: 


Simplifying
2X + X = 400

Combine like terms: 2X + X = 3X
3X = 400

Solving
3X = 400

Solving for variable 'X'.

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

Divide each side by '3'.
X = 133.3333333

Simplifying
X = 133.3333333

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