8(y-1)-y=2(9-y)

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Solution for 8(y-1)-y=2(9-y) equation:


Simplifying
8(y + -1) + -1y = 2(9 + -1y)

Reorder the terms:
8(-1 + y) + -1y = 2(9 + -1y)
(-1 * 8 + y * 8) + -1y = 2(9 + -1y)
(-8 + 8y) + -1y = 2(9 + -1y)

Combine like terms: 8y + -1y = 7y
-8 + 7y = 2(9 + -1y)
-8 + 7y = (9 * 2 + -1y * 2)
-8 + 7y = (18 + -2y)

Solving
-8 + 7y = 18 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
-8 + 7y + 2y = 18 + -2y + 2y

Combine like terms: 7y + 2y = 9y
-8 + 9y = 18 + -2y + 2y

Combine like terms: -2y + 2y = 0
-8 + 9y = 18 + 0
-8 + 9y = 18

Add '8' to each side of the equation.
-8 + 8 + 9y = 18 + 8

Combine like terms: -8 + 8 = 0
0 + 9y = 18 + 8
9y = 18 + 8

Combine like terms: 18 + 8 = 26
9y = 26

Divide each side by '9'.
y = 2.888888889

Simplifying
y = 2.888888889

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