(x-3)(y-7)=(x-4)(y-3)

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Solution for (x-3)(y-7)=(x-4)(y-3) equation:


Simplifying
(x + -3)(y + -7) = (x + -4)(y + -3)

Reorder the terms:
(-3 + x)(y + -7) = (x + -4)(y + -3)

Reorder the terms:
(-3 + x)(-7 + y) = (x + -4)(y + -3)

Multiply (-3 + x) * (-7 + y)
(-3(-7 + y) + x(-7 + y)) = (x + -4)(y + -3)
((-7 * -3 + y * -3) + x(-7 + y)) = (x + -4)(y + -3)
((21 + -3y) + x(-7 + y)) = (x + -4)(y + -3)
(21 + -3y + (-7 * x + y * x)) = (x + -4)(y + -3)
(21 + -3y + (-7x + xy)) = (x + -4)(y + -3)

Reorder the terms:
(21 + -7x + xy + -3y) = (x + -4)(y + -3)
(21 + -7x + xy + -3y) = (x + -4)(y + -3)

Reorder the terms:
21 + -7x + xy + -3y = (-4 + x)(y + -3)

Reorder the terms:
21 + -7x + xy + -3y = (-4 + x)(-3 + y)

Multiply (-4 + x) * (-3 + y)
21 + -7x + xy + -3y = (-4(-3 + y) + x(-3 + y))
21 + -7x + xy + -3y = ((-3 * -4 + y * -4) + x(-3 + y))
21 + -7x + xy + -3y = ((12 + -4y) + x(-3 + y))
21 + -7x + xy + -3y = (12 + -4y + (-3 * x + y * x))
21 + -7x + xy + -3y = (12 + -4y + (-3x + xy))

Reorder the terms:
21 + -7x + xy + -3y = (12 + -3x + xy + -4y)
21 + -7x + xy + -3y = (12 + -3x + xy + -4y)

Add '-1xy' to each side of the equation.
21 + -7x + xy + -1xy + -3y = 12 + -3x + xy + -1xy + -4y

Combine like terms: xy + -1xy = 0
21 + -7x + 0 + -3y = 12 + -3x + xy + -1xy + -4y
21 + -7x + -3y = 12 + -3x + xy + -1xy + -4y

Combine like terms: xy + -1xy = 0
21 + -7x + -3y = 12 + -3x + 0 + -4y
21 + -7x + -3y = 12 + -3x + -4y

Solving
21 + -7x + -3y = 12 + -3x + -4y

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
21 + -7x + 3x + -3y = 12 + -3x + 3x + -4y

Combine like terms: -7x + 3x = -4x
21 + -4x + -3y = 12 + -3x + 3x + -4y

Combine like terms: -3x + 3x = 0
21 + -4x + -3y = 12 + 0 + -4y
21 + -4x + -3y = 12 + -4y

Add '-21' to each side of the equation.
21 + -4x + -21 + -3y = 12 + -21 + -4y

Reorder the terms:
21 + -21 + -4x + -3y = 12 + -21 + -4y

Combine like terms: 21 + -21 = 0
0 + -4x + -3y = 12 + -21 + -4y
-4x + -3y = 12 + -21 + -4y

Combine like terms: 12 + -21 = -9
-4x + -3y = -9 + -4y

Add '3y' to each side of the equation.
-4x + -3y + 3y = -9 + -4y + 3y

Combine like terms: -3y + 3y = 0
-4x + 0 = -9 + -4y + 3y
-4x = -9 + -4y + 3y

Combine like terms: -4y + 3y = -1y
-4x = -9 + -1y

Divide each side by '-4'.
x = 2.25 + 0.25y

Simplifying
x = 2.25 + 0.25y

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