X-3x=y

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Solution for X-3x=y equation: 


Simplifying
X + -3x = y

Solving
X + -3x = y

Solving for variable 'X'.

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

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

Combine like terms: -3x + 3x = 0
X + 0 = 3x + y
X = 3x + y

Simplifying
X = 3x + y

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