3x+(-x)=200

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Solution for 3x+(-x)=200 equation: 


Simplifying
3x + (-1x) = 200

Combine like terms: 3x + (-1x) = 2x
2x = 200

Solving
2x = 200

Solving for variable 'x'.

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

Divide each side by '2'.
x = 100

Simplifying
x = 100

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