18y-6=-3(y+9)

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Solution for 18y-6=-3(y+9) equation:


Simplifying
18y + -6 = -3(y + 9)

Reorder the terms:
-6 + 18y = -3(y + 9)

Reorder the terms:
-6 + 18y = -3(9 + y)
-6 + 18y = (9 * -3 + y * -3)
-6 + 18y = (-27 + -3y)

Solving
-6 + 18y = -27 + -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.
-6 + 18y + 3y = -27 + -3y + 3y

Combine like terms: 18y + 3y = 21y
-6 + 21y = -27 + -3y + 3y

Combine like terms: -3y + 3y = 0
-6 + 21y = -27 + 0
-6 + 21y = -27

Add '6' to each side of the equation.
-6 + 6 + 21y = -27 + 6

Combine like terms: -6 + 6 = 0
0 + 21y = -27 + 6
21y = -27 + 6

Combine like terms: -27 + 6 = -21
21y = -21

Divide each side by '21'.
y = -1

Simplifying
y = -1

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