3X-u=7

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Solution for 3X-u=7 equation: 


Simplifying
3X + -1u = 7

Solving
3X + -1u = 7

Solving for variable 'X'.

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

Add 'u' to each side of the equation.
3X + -1u + u = 7 + u

Combine like terms: -1u + u = 0
3X + 0 = 7 + u
3X = 7 + u

Divide each side by '3'.
X = 2.333333333 + 0.3333333333u

Simplifying
X = 2.333333333 + 0.3333333333u

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