(y-8)-(y+8)=9y

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Solution for (y-8)-(y+8)=9y equation:


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

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

Remove parenthesis around (-8 + y)
-8 + y + -1(y + 8) = 9y

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

Reorder the terms:
-8 + -8 + y + -1y = 9y

Combine like terms: -8 + -8 = -16
-16 + y + -1y = 9y

Combine like terms: y + -1y = 0
-16 + 0 = 9y
-16 = 9y

Solving
-16 = 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.
-16 + -9y = 9y + -9y

Combine like terms: 9y + -9y = 0
-16 + -9y = 0

Add '16' to each side of the equation.
-16 + 16 + -9y = 0 + 16

Combine like terms: -16 + 16 = 0
0 + -9y = 0 + 16
-9y = 0 + 16

Combine like terms: 0 + 16 = 16
-9y = 16

Divide each side by '-9'.
y = -1.777777778

Simplifying
y = -1.777777778

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