-9=3(y+4)

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Solution for -9=3(y+4) equation:


Simplifying
-9 = 3(y + 4)

Reorder the terms:
-9 = 3(4 + y)
-9 = (4 * 3 + y * 3)
-9 = (12 + 3y)

Solving
-9 = 12 + 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.
-9 + -3y = 12 + 3y + -3y

Combine like terms: 3y + -3y = 0
-9 + -3y = 12 + 0
-9 + -3y = 12

Add '9' to each side of the equation.
-9 + 9 + -3y = 12 + 9

Combine like terms: -9 + 9 = 0
0 + -3y = 12 + 9
-3y = 12 + 9

Combine like terms: 12 + 9 = 21
-3y = 21

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

Simplifying
y = -7

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