3(-y)=3(y+4)

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


Simplifying
3(-1y) = 3(y + 4)

Remove parenthesis around (-1y)
3 * -1y = 3(y + 4)

Multiply 3 * -1
-3y = 3(y + 4)

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

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

Combine like terms: -3y + -3y = -6y
-6y = 12 + 3y + -3y

Combine like terms: 3y + -3y = 0
-6y = 12 + 0
-6y = 12

Divide each side by '-6'.
y = -2

Simplifying
y = -2

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