390=(x-8)(y-4)

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Solution for 390=(x-8)(y-4) equation:


Simplifying
390 = (x + -8)(y + -4)

Reorder the terms:
390 = (-8 + x)(y + -4)

Reorder the terms:
390 = (-8 + x)(-4 + y)

Multiply (-8 + x) * (-4 + y)
390 = (-8(-4 + y) + x(-4 + y))
390 = ((-4 * -8 + y * -8) + x(-4 + y))
390 = ((32 + -8y) + x(-4 + y))
390 = (32 + -8y + (-4 * x + y * x))
390 = (32 + -8y + (-4x + xy))

Reorder the terms:
390 = (32 + -4x + xy + -8y)
390 = (32 + -4x + xy + -8y)

Solving
390 = 32 + -4x + xy + -8y

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
390 + 4x = 32 + -4x + xy + 4x + -8y

Reorder the terms:
390 + 4x = 32 + -4x + 4x + xy + -8y

Combine like terms: -4x + 4x = 0
390 + 4x = 32 + 0 + xy + -8y
390 + 4x = 32 + xy + -8y

Add '-1xy' to each side of the equation.
390 + 4x + -1xy = 32 + xy + -1xy + -8y

Combine like terms: xy + -1xy = 0
390 + 4x + -1xy = 32 + 0 + -8y
390 + 4x + -1xy = 32 + -8y

Add '-390' to each side of the equation.
390 + 4x + -390 + -1xy = 32 + -390 + -8y

Reorder the terms:
390 + -390 + 4x + -1xy = 32 + -390 + -8y

Combine like terms: 390 + -390 = 0
0 + 4x + -1xy = 32 + -390 + -8y
4x + -1xy = 32 + -390 + -8y

Combine like terms: 32 + -390 = -358
4x + -1xy = -358 + -8y

Reorder the terms:
358 + 4x + -1xy + 8y = -358 + -8y + 358 + 8y

Reorder the terms:
358 + 4x + -1xy + 8y = -358 + 358 + -8y + 8y

Combine like terms: -358 + 358 = 0
358 + 4x + -1xy + 8y = 0 + -8y + 8y
358 + 4x + -1xy + 8y = -8y + 8y

Combine like terms: -8y + 8y = 0
358 + 4x + -1xy + 8y = 0

The solution to this equation could not be determined.

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