-(3y+4)-(-2y-5)=-1

Solution for -(3y+4)-(-2y-5)=-1 equation:

Simplifying
-1(3y + 4) + -1(-2y + -5) = -1

Reorder the terms:
-1(4 + 3y) + -1(-2y + -5) = -1
(4 * -1 + 3y * -1) + -1(-2y + -5) = -1
(-4 + -3y) + -1(-2y + -5) = -1

Reorder the terms:
-4 + -3y + -1(-5 + -2y) = -1
-4 + -3y + (-5 * -1 + -2y * -1) = -1
-4 + -3y + (5 + 2y) = -1

Reorder the terms:
-4 + 5 + -3y + 2y = -1

Combine like terms: -4 + 5 = 1
1 + -3y + 2y = -1

Combine like terms: -3y + 2y = -1y
1 + -1y = -1

Solving
1 + -1y = -1

Solving for variable 'y'.

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

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

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

Combine like terms: -1 + -1 = -2
-1y = -2

Divide each side by '-1'.
y = 2

Simplifying
y = 2