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

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


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

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

Reorder the terms:
-2 + -2y = 9y + -9 + 2(8 + 2y)
-2 + -2y = 9y + -9 + (8 * 2 + 2y * 2)
-2 + -2y = 9y + -9 + (16 + 4y)

Reorder the terms:
-2 + -2y = -9 + 16 + 9y + 4y

Combine like terms: -9 + 16 = 7
-2 + -2y = 7 + 9y + 4y

Combine like terms: 9y + 4y = 13y
-2 + -2y = 7 + 13y

Solving
-2 + -2y = 7 + 13y

Solving for variable 'y'.

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

Add '-13y' to each side of the equation.
-2 + -2y + -13y = 7 + 13y + -13y

Combine like terms: -2y + -13y = -15y
-2 + -15y = 7 + 13y + -13y

Combine like terms: 13y + -13y = 0
-2 + -15y = 7 + 0
-2 + -15y = 7

Add '2' to each side of the equation.
-2 + 2 + -15y = 7 + 2

Combine like terms: -2 + 2 = 0
0 + -15y = 7 + 2
-15y = 7 + 2

Combine like terms: 7 + 2 = 9
-15y = 9

Divide each side by '-15'.
y = -0.6

Simplifying
y = -0.6

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