XY-4y=9

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Solution for XY-4y=9 equation: 


Simplifying
XY + -4y = 9

Solving
XY + -4y = 9

Solving for variable 'X'.

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

Add '4y' to each side of the equation.
XY + -4y + 4y = 9 + 4y

Combine like terms: -4y + 4y = 0
XY + 0 = 9 + 4y
XY = 9 + 4y

Divide each side by 'Y'.
X = 9Y-1 + 4yY-1

Simplifying
X = 9Y-1 + 4yY-1

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