3X+X=15

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Solution for 3X+X=15 equation: 


Simplifying
3X + X = 15

Combine like terms: 3X + X = 4X
4X = 15

Solving
4X = 15

Solving for variable 'X'.

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

Divide each side by '4'.
X = 3.75

Simplifying
X = 3.75

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