3y+9-(y-5)=-2(y+8)

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Solution for 3y+9-(y-5)=-2(y+8) equation:


Simplifying
3y + 9 + -1(y + -5) = -2(y + 8)

Reorder the terms:
3y + 9 + -1(-5 + y) = -2(y + 8)
3y + 9 + (-5 * -1 + y * -1) = -2(y + 8)
3y + 9 + (5 + -1y) = -2(y + 8)

Reorder the terms:
9 + 5 + 3y + -1y = -2(y + 8)

Combine like terms: 9 + 5 = 14
14 + 3y + -1y = -2(y + 8)

Combine like terms: 3y + -1y = 2y
14 + 2y = -2(y + 8)

Reorder the terms:
14 + 2y = -2(8 + y)
14 + 2y = (8 * -2 + y * -2)
14 + 2y = (-16 + -2y)

Solving
14 + 2y = -16 + -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.
14 + 2y + 2y = -16 + -2y + 2y

Combine like terms: 2y + 2y = 4y
14 + 4y = -16 + -2y + 2y

Combine like terms: -2y + 2y = 0
14 + 4y = -16 + 0
14 + 4y = -16

Add '-14' to each side of the equation.
14 + -14 + 4y = -16 + -14

Combine like terms: 14 + -14 = 0
0 + 4y = -16 + -14
4y = -16 + -14

Combine like terms: -16 + -14 = -30
4y = -30

Divide each side by '4'.
y = -7.5

Simplifying
y = -7.5

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