(y-5)-(y+5)=9y

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Solution for (y-5)-(y+5)=9y equation:


Simplifying
(y + -5) + -1(y + 5) = 9y

Reorder the terms:
(-5 + y) + -1(y + 5) = 9y

Remove parenthesis around (-5 + y)
-5 + y + -1(y + 5) = 9y

Reorder the terms:
-5 + y + -1(5 + y) = 9y
-5 + y + (5 * -1 + y * -1) = 9y
-5 + y + (-5 + -1y) = 9y

Reorder the terms:
-5 + -5 + y + -1y = 9y

Combine like terms: -5 + -5 = -10
-10 + y + -1y = 9y

Combine like terms: y + -1y = 0
-10 + 0 = 9y
-10 = 9y

Solving
-10 = 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.
-10 + -9y = 9y + -9y

Combine like terms: 9y + -9y = 0
-10 + -9y = 0

Add '10' to each side of the equation.
-10 + 10 + -9y = 0 + 10

Combine like terms: -10 + 10 = 0
0 + -9y = 0 + 10
-9y = 0 + 10

Combine like terms: 0 + 10 = 10
-9y = 10

Divide each side by '-9'.
y = -1.111111111

Simplifying
y = -1.111111111

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