(1-y)(3-y)(6-y)=120

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Solution for (1-y)(3-y)(6-y)=120 equation: 


Simplifying
(1 + -1y)(3 + -1y)(6 + -1y) = 120

Multiply (1 + -1y) * (3 + -1y)
(1(3 + -1y) + -1y * (3 + -1y))(6 + -1y) = 120
((3 * 1 + -1y * 1) + -1y * (3 + -1y))(6 + -1y) = 120
((3 + -1y) + -1y * (3 + -1y))(6 + -1y) = 120
(3 + -1y + (3 * -1y + -1y * -1y))(6 + -1y) = 120
(3 + -1y + (-3y + 1y2))(6 + -1y) = 120

Combine like terms: -1y + -3y = -4y
(3 + -4y + 1y2)(6 + -1y) = 120

Multiply (3 + -4y + 1y2) * (6 + -1y)
(3(6 + -1y) + -4y * (6 + -1y) + 1y2 * (6 + -1y)) = 120
((6 * 3 + -1y * 3) + -4y * (6 + -1y) + 1y2 * (6 + -1y)) = 120
((18 + -3y) + -4y * (6 + -1y) + 1y2 * (6 + -1y)) = 120
(18 + -3y + (6 * -4y + -1y * -4y) + 1y2 * (6 + -1y)) = 120
(18 + -3y + (-24y + 4y2) + 1y2 * (6 + -1y)) = 120
(18 + -3y + -24y + 4y2 + (6 * 1y2 + -1y * 1y2)) = 120
(18 + -3y + -24y + 4y2 + (6y2 + -1y3)) = 120

Combine like terms: -3y + -24y = -27y
(18 + -27y + 4y2 + 6y2 + -1y3) = 120

Combine like terms: 4y2 + 6y2 = 10y2
(18 + -27y + 10y2 + -1y3) = 120

Solving
18 + -27y + 10y2 + -1y3 = 120

Solving for variable 'y'.

Reorder the terms:
18 + -120 + -27y + 10y2 + -1y3 = 120 + -120

Combine like terms: 18 + -120 = -102
-102 + -27y + 10y2 + -1y3 = 120 + -120

Combine like terms: 120 + -120 = 0
-102 + -27y + 10y2 + -1y3 = 0

The solution to this equation could not be determined.

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