72=-12(-3y)

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Solution for 72=-12(-3y) equation:


Simplifying
72 = -12(-3y)

Remove parenthesis around (-3y)
72 = -12 * -3y

Multiply -12 * -3
72 = 36y

Solving
72 = 36y

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-36y' to each side of the equation.
72 + -36y = 36y + -36y

Combine like terms: 36y + -36y = 0
72 + -36y = 0

Add '-72' to each side of the equation.
72 + -72 + -36y = 0 + -72

Combine like terms: 72 + -72 = 0
0 + -36y = 0 + -72
-36y = 0 + -72

Combine like terms: 0 + -72 = -72
-36y = -72

Divide each side by '-36'.
y = 2

Simplifying
y = 2

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