91=(4+y)xy

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Solution for 91=(4+y)xy equation:


Simplifying
91 = (4 + y) * xy

Reorder the terms for easier multiplication:
91 = xy(4 + y)
91 = (4 * xy + y * xy)
91 = (4xy + xy2)

Solving
91 = 4xy + xy2

Solving for variable 'x'.

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

Add '-4xy' to each side of the equation.
91 + -4xy = 4xy + -4xy + xy2

Combine like terms: 4xy + -4xy = 0
91 + -4xy = 0 + xy2
91 + -4xy = xy2

Add '-1xy2' to each side of the equation.
91 + -4xy + -1xy2 = xy2 + -1xy2

Combine like terms: xy2 + -1xy2 = 0
91 + -4xy + -1xy2 = 0

Add '-91' to each side of the equation.
91 + -4xy + -91 + -1xy2 = 0 + -91

Reorder the terms:
91 + -91 + -4xy + -1xy2 = 0 + -91

Combine like terms: 91 + -91 = 0
0 + -4xy + -1xy2 = 0 + -91
-4xy + -1xy2 = 0 + -91

Combine like terms: 0 + -91 = -91
-4xy + -1xy2 = -91

Reorder the terms:
91 + -4xy + -1xy2 = -91 + 91

Combine like terms: -91 + 91 = 0
91 + -4xy + -1xy2 = 0

The solution to this equation could not be determined.

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