y(3y+6)+3y-216=3y(y-3)

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Solution for y(3y+6)+3y-216=3y(y-3) equation:


Simplifying
y(3y + 6) + 3y + -216 = 3y(y + -3)

Reorder the terms:
y(6 + 3y) + 3y + -216 = 3y(y + -3)
(6 * y + 3y * y) + 3y + -216 = 3y(y + -3)
(6y + 3y2) + 3y + -216 = 3y(y + -3)

Reorder the terms:
-216 + 6y + 3y + 3y2 = 3y(y + -3)

Combine like terms: 6y + 3y = 9y
-216 + 9y + 3y2 = 3y(y + -3)

Reorder the terms:
-216 + 9y + 3y2 = 3y(-3 + y)
-216 + 9y + 3y2 = (-3 * 3y + y * 3y)
-216 + 9y + 3y2 = (-9y + 3y2)

Add '-3y2' to each side of the equation.
-216 + 9y + 3y2 + -3y2 = -9y + 3y2 + -3y2

Combine like terms: 3y2 + -3y2 = 0
-216 + 9y + 0 = -9y + 3y2 + -3y2
-216 + 9y = -9y + 3y2 + -3y2

Combine like terms: 3y2 + -3y2 = 0
-216 + 9y = -9y + 0
-216 + 9y = -9y

Solving
-216 + 9y = -9y

Solving for variable 'y'.

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

Add '9y' to each side of the equation.
-216 + 9y + 9y = -9y + 9y

Combine like terms: 9y + 9y = 18y
-216 + 18y = -9y + 9y

Combine like terms: -9y + 9y = 0
-216 + 18y = 0

Add '216' to each side of the equation.
-216 + 216 + 18y = 0 + 216

Combine like terms: -216 + 216 = 0
0 + 18y = 0 + 216
18y = 0 + 216

Combine like terms: 0 + 216 = 216
18y = 216

Divide each side by '18'.
y = 12

Simplifying
y = 12

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