4y-xy=9y

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Solution for 4y-xy=9y equation:


Simplifying
4y + -1xy = 9y

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

Solving
-1xy + 4y = 9y

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.
-1xy + 4y + -4y = 9y + -4y

Combine like terms: 4y + -4y = 0
-1xy + 0 = 9y + -4y
-1xy = 9y + -4y

Combine like terms: 9y + -4y = 5y
-1xy = 5y

Divide each side by '-1y'.
x = -5

Simplifying
x = -5

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