-(-x+y-1)=

Solution for -(-x+y-1)= equation:

Simplifying
-1(-1x + y + -1) = 0

Reorder the terms:
-1(-1 + -1x + y) = 0
(-1 * -1 + -1x * -1 + y * -1) = 0
(1 + 1x + -1y) = 0

Solving
1 + 1x + -1y = 0

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + 1x + -1 + -1y = 0 + -1

Reorder the terms:
1 + -1 + 1x + -1y = 0 + -1

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

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

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

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

Divide each side by '1'.
x = -1 + y

Simplifying
x = -1 + y