(y-6)-(y+6)=9y

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Solution for (y-6)-(y+6)=9y equation:


Simplifying
(y + -6) + -1(y + 6) = 9y

Reorder the terms:
(-6 + y) + -1(y + 6) = 9y

Remove parenthesis around (-6 + y)
-6 + y + -1(y + 6) = 9y

Reorder the terms:
-6 + y + -1(6 + y) = 9y
-6 + y + (6 * -1 + y * -1) = 9y
-6 + y + (-6 + -1y) = 9y

Reorder the terms:
-6 + -6 + y + -1y = 9y

Combine like terms: -6 + -6 = -12
-12 + y + -1y = 9y

Combine like terms: y + -1y = 0
-12 + 0 = 9y
-12 = 9y

Solving
-12 = 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.
-12 + -9y = 9y + -9y

Combine like terms: 9y + -9y = 0
-12 + -9y = 0

Add '12' to each side of the equation.
-12 + 12 + -9y = 0 + 12

Combine like terms: -12 + 12 = 0
0 + -9y = 0 + 12
-9y = 0 + 12

Combine like terms: 0 + 12 = 12
-9y = 12

Divide each side by '-9'.
y = -1.333333333

Simplifying
y = -1.333333333

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