(4x+5)(5y-4)=

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Solution for (4x+5)(5y-4)= equation:


Simplifying
(4x + 5)(5y + -4) = 0

Reorder the terms:
(5 + 4x)(5y + -4) = 0

Reorder the terms:
(5 + 4x)(-4 + 5y) = 0

Multiply (5 + 4x) * (-4 + 5y)
(5(-4 + 5y) + 4x * (-4 + 5y)) = 0
((-4 * 5 + 5y * 5) + 4x * (-4 + 5y)) = 0
((-20 + 25y) + 4x * (-4 + 5y)) = 0
(-20 + 25y + (-4 * 4x + 5y * 4x)) = 0
(-20 + 25y + (-16x + 20xy)) = 0

Reorder the terms:
(-20 + -16x + 20xy + 25y) = 0
(-20 + -16x + 20xy + 25y) = 0

Solving
-20 + -16x + 20xy + 25y = 0

Solving for variable 'x'.

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

Add '20' to each side of the equation.
-20 + -16x + 20xy + 20 + 25y = 0 + 20

Reorder the terms:
-20 + 20 + -16x + 20xy + 25y = 0 + 20

Combine like terms: -20 + 20 = 0
0 + -16x + 20xy + 25y = 0 + 20
-16x + 20xy + 25y = 0 + 20

Combine like terms: 0 + 20 = 20
-16x + 20xy + 25y = 20

Add '-25y' to each side of the equation.
-16x + 20xy + 25y + -25y = 20 + -25y

Combine like terms: 25y + -25y = 0
-16x + 20xy + 0 = 20 + -25y
-16x + 20xy = 20 + -25y

Reorder the terms:
-20 + -16x + 20xy + 25y = 20 + -25y + -20 + 25y

Reorder the terms:
-20 + -16x + 20xy + 25y = 20 + -20 + -25y + 25y

Combine like terms: 20 + -20 = 0
-20 + -16x + 20xy + 25y = 0 + -25y + 25y
-20 + -16x + 20xy + 25y = -25y + 25y

Combine like terms: -25y + 25y = 0
-20 + -16x + 20xy + 25y = 0

The solution to this equation could not be determined.

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