-(5y+1)-(-4y-4)=-1

Solution for -(5y+1)-(-4y-4)=-1 equation:

Simplifying
-1(5y + 1) + -1(-4y + -4) = -1

Reorder the terms:
-1(1 + 5y) + -1(-4y + -4) = -1
(1 * -1 + 5y * -1) + -1(-4y + -4) = -1
(-1 + -5y) + -1(-4y + -4) = -1

Reorder the terms:
-1 + -5y + -1(-4 + -4y) = -1
-1 + -5y + (-4 * -1 + -4y * -1) = -1
-1 + -5y + (4 + 4y) = -1

Reorder the terms:
-1 + 4 + -5y + 4y = -1

Combine like terms: -1 + 4 = 3
3 + -5y + 4y = -1

Combine like terms: -5y + 4y = -1y
3 + -1y = -1

Solving
3 + -1y = -1

Solving for variable 'y'.

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

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

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

Combine like terms: -1 + -3 = -4
-1y = -4

Divide each side by '-1'.
y = 4

Simplifying
y = 4