y(y)=(y-8)(y-1)

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Solution for y(y)=(y-8)(y-1) equation:


Simplifying
y(y) = (y + -8)(y + -1)

Multiply y * y
y2 = (y + -8)(y + -1)

Reorder the terms:
y2 = (-8 + y)(y + -1)

Reorder the terms:
y2 = (-8 + y)(-1 + y)

Multiply (-8 + y) * (-1 + y)
y2 = (-8(-1 + y) + y(-1 + y))
y2 = ((-1 * -8 + y * -8) + y(-1 + y))
y2 = ((8 + -8y) + y(-1 + y))
y2 = (8 + -8y + (-1 * y + y * y))
y2 = (8 + -8y + (-1y + y2))

Combine like terms: -8y + -1y = -9y
y2 = (8 + -9y + y2)

Add '-1y2' to each side of the equation.
y2 + -1y2 = 8 + -9y + y2 + -1y2

Combine like terms: y2 + -1y2 = 0
0 = 8 + -9y + y2 + -1y2

Combine like terms: y2 + -1y2 = 0
0 = 8 + -9y + 0
0 = 8 + -9y

Solving
0 = 8 + -9y

Solving for variable 'y'.

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

Add '9y' to each side of the equation.
0 + 9y = 8 + -9y + 9y
Remove the zero:
9y = 8 + -9y + 9y

Combine like terms: -9y + 9y = 0
9y = 8 + 0
9y = 8

Divide each side by '9'.
y = 0.8888888889

Simplifying
y = 0.8888888889

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