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 + -4

Simplifying
x = 9y-1 + -4

Reorder the terms:
x = -4 + 9y-1

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