3=-(-y-12)

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


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

Reorder the terms:
3 = -1(-12 + -1y)
3 = (-12 * -1 + -1y * -1)
3 = (12 + 1y)

Solving
3 = 12 + 1y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
3 + -1y = 12 + 1y + -1y

Combine like terms: 1y + -1y = 0
3 + -1y = 12 + 0
3 + -1y = 12

Add '-3' to each side of the equation.
3 + -3 + -1y = 12 + -3

Combine like terms: 3 + -3 = 0
0 + -1y = 12 + -3
-1y = 12 + -3

Combine like terms: 12 + -3 = 9
-1y = 9

Divide each side by '-1'.
y = -9

Simplifying
y = -9

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