12-(-3y)=-27

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Solution for 12-(-3y)=-27 equation:


Simplifying
12 + -1(-3y) = -27

Remove parenthesis around (-3y)
12 + -1 * -3y = -27

Multiply -1 * -3
12 + 3y = -27

Solving
12 + 3y = -27

Solving for variable 'y'.

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

Add '-12' to each side of the equation.
12 + -12 + 3y = -27 + -12

Combine like terms: 12 + -12 = 0
0 + 3y = -27 + -12
3y = -27 + -12

Combine like terms: -27 + -12 = -39
3y = -39

Divide each side by '3'.
y = -13

Simplifying
y = -13

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