3=-(-y+-6)

Solution for 3=-(-y+-6) equation:

Simplifying
3 = -1(-1y + -6)

Reorder the terms:
3 = -1(-6 + -1y)
3 = (-6 * -1 + -1y * -1)
3 = (6 + 1y)

Solving
3 = 6 + 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 = 6 + 1y + -1y

Combine like terms: 1y + -1y = 0
3 + -1y = 6 + 0
3 + -1y = 6

Add '-3' to each side of the equation.
3 + -3 + -1y = 6 + -3

Combine like terms: 3 + -3 = 0
0 + -1y = 6 + -3
-1y = 6 + -3

Combine like terms: 6 + -3 = 3
-1y = 3

Divide each side by '-1'.
y = -3

Simplifying
y = -3