15=3(y+6)

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Solution for 15=3(y+6) equation: 


Simplifying
15 = 3(y + 6)

Reorder the terms:
15 = 3(6 + y)
15 = (6 * 3 + y * 3)
15 = (18 + 3y)

Solving
15 = 18 + 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 + -3y = 18 + 3y + -3y

Combine like terms: 3y + -3y = 0
15 + -3y = 18 + 0
15 + -3y = 18

Add '-15' to each side of the equation.
15 + -15 + -3y = 18 + -15

Combine like terms: 15 + -15 = 0
0 + -3y = 18 + -15
-3y = 18 + -15

Combine like terms: 18 + -15 = 3
-3y = 3

Divide each side by '-3'.
y = -1

Simplifying
y = -1

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