9y+3-3(-2y-4)=3(y-1)

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Solution for 9y+3-3(-2y-4)=3(y-1) equation:


Simplifying
9y + 3 + -3(-2y + -4) = 3(y + -1)

Reorder the terms:
9y + 3 + -3(-4 + -2y) = 3(y + -1)
9y + 3 + (-4 * -3 + -2y * -3) = 3(y + -1)
9y + 3 + (12 + 6y) = 3(y + -1)

Reorder the terms:
3 + 12 + 9y + 6y = 3(y + -1)

Combine like terms: 3 + 12 = 15
15 + 9y + 6y = 3(y + -1)

Combine like terms: 9y + 6y = 15y
15 + 15y = 3(y + -1)

Reorder the terms:
15 + 15y = 3(-1 + y)
15 + 15y = (-1 * 3 + y * 3)
15 + 15y = (-3 + 3y)

Solving
15 + 15y = -3 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
15 + 15y + -3y = -3 + 3y + -3y

Combine like terms: 15y + -3y = 12y
15 + 12y = -3 + 3y + -3y

Combine like terms: 3y + -3y = 0
15 + 12y = -3 + 0
15 + 12y = -3

Add '-15' to each side of the equation.
15 + -15 + 12y = -3 + -15

Combine like terms: 15 + -15 = 0
0 + 12y = -3 + -15
12y = -3 + -15

Combine like terms: -3 + -15 = -18
12y = -18

Divide each side by '12'.
y = -1.5

Simplifying
y = -1.5

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