Y-9y-15=3(-4y-6)

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Solution for Y-9y-15=3(-4y-6) equation:


Simplifying
Y + -9y + -15 = 3(-4y + -6)

Reorder the terms:
-15 + Y + -9y = 3(-4y + -6)

Reorder the terms:
-15 + Y + -9y = 3(-6 + -4y)
-15 + Y + -9y = (-6 * 3 + -4y * 3)
-15 + Y + -9y = (-18 + -12y)

Solving
-15 + Y + -9y = -18 + -12y

Solving for variable 'Y'.

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

Add '15' to each side of the equation.
-15 + Y + 15 + -9y = -18 + 15 + -12y

Reorder the terms:
-15 + 15 + Y + -9y = -18 + 15 + -12y

Combine like terms: -15 + 15 = 0
0 + Y + -9y = -18 + 15 + -12y
Y + -9y = -18 + 15 + -12y

Combine like terms: -18 + 15 = -3
Y + -9y = -3 + -12y

Add '9y' to each side of the equation.
Y + -9y + 9y = -3 + -12y + 9y

Combine like terms: -9y + 9y = 0
Y + 0 = -3 + -12y + 9y
Y = -3 + -12y + 9y

Combine like terms: -12y + 9y = -3y
Y = -3 + -3y

Simplifying
Y = -3 + -3y

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