9(3y+6)+3(y+6)=

Solution for 9(3y+6)+3(y+6)= equation:

Simplifying
9(3y + 6) + 3(y + 6) = 0

Reorder the terms:
9(6 + 3y) + 3(y + 6) = 0
(6 * 9 + 3y * 9) + 3(y + 6) = 0
(54 + 27y) + 3(y + 6) = 0

Reorder the terms:
54 + 27y + 3(6 + y) = 0
54 + 27y + (6 * 3 + y * 3) = 0
54 + 27y + (18 + 3y) = 0

Reorder the terms:
54 + 18 + 27y + 3y = 0

Combine like terms: 54 + 18 = 72
72 + 27y + 3y = 0

Combine like terms: 27y + 3y = 30y
72 + 30y = 0

Solving
72 + 30y = 0

Solving for variable 'y'.

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

Add '-72' to each side of the equation.
72 + -72 + 30y = 0 + -72

Combine like terms: 72 + -72 = 0
0 + 30y = 0 + -72
30y = 0 + -72

Combine like terms: 0 + -72 = -72
30y = -72

Divide each side by '30'.
y = -2.4

Simplifying
y = -2.4