-15=3(y+2)

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Solution for -15=3(y+2) equation:


Simplifying
-15 = 3(y + 2)

Reorder the terms:
-15 = 3(2 + y)
-15 = (2 * 3 + y * 3)
-15 = (6 + 3y)

Solving
-15 = 6 + 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 = 6 + 3y + -3y

Combine like terms: 3y + -3y = 0
-15 + -3y = 6 + 0
-15 + -3y = 6

Add '15' to each side of the equation.
-15 + 15 + -3y = 6 + 15

Combine like terms: -15 + 15 = 0
0 + -3y = 6 + 15
-3y = 6 + 15

Combine like terms: 6 + 15 = 21
-3y = 21

Divide each side by '-3'.
y = -7

Simplifying
y = -7

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