X(3)=-15

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Solution for X(3)=-15 equation: 


Simplifying
X(3) = -15

Reorder the terms for easier multiplication:
3X = -15

Solving
3X = -15

Solving for variable 'X'.

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

Divide each side by '3'.
X = -5

Simplifying
X = -5

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