-9y+15=-3(y-1)

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Solution for -9y+15=-3(y-1) equation:


Simplifying
-9y + 15 = -3(y + -1)

Reorder the terms:
15 + -9y = -3(y + -1)

Reorder the terms:
15 + -9y = -3(-1 + y)
15 + -9y = (-1 * -3 + y * -3)
15 + -9y = (3 + -3y)

Solving
15 + -9y = 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 + -9y + 3y = 3 + -3y + 3y

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

Combine like terms: -3y + 3y = 0
15 + -6y = 3 + 0
15 + -6y = 3

Add '-15' to each side of the equation.
15 + -15 + -6y = 3 + -15

Combine like terms: 15 + -15 = 0
0 + -6y = 3 + -15
-6y = 3 + -15

Combine like terms: 3 + -15 = -12
-6y = -12

Divide each side by '-6'.
y = 2

Simplifying
y = 2

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