X-9y=81

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Solution for X-9y=81 equation: 


Simplifying
X + -9y = 81

Solving
X + -9y = 81

Solving for variable 'X'.

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

Add '9y' to each side of the equation.
X + -9y + 9y = 81 + 9y

Combine like terms: -9y + 9y = 0
X + 0 = 81 + 9y
X = 81 + 9y

Simplifying
X = 81 + 9y

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