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

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

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

Multiply -1 * -1
1 + y + -1 + 1 + -1(-1) = 3 + y + -1 + -1(-1y)

Multiply -1 * -1
1 + y + -1 + 1 + 1 = 3 + y + -1 + -1(-1y)

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

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

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

Remove parenthesis around (-1y)
2 + y = 3 + y + -1 + -1 * -1y

Multiply -1 * -1
2 + y = 3 + y + -1 + 1y

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

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

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

Add '-2' to each side of the equation.
2 + -2 + y = 2 + -2 + 2y

Combine like terms: 2 + -2 = 0
0 + y = 2 + -2 + 2y
y = 2 + -2 + 2y

Combine like terms: 2 + -2 = 0
y = 0 + 2y
y = 2y

Solving
y = 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
y + -2y = 2y + -2y

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

Combine like terms: 2y + -2y = 0
-1y = 0

Divide each side by '-1'.
y = 0

Simplifying
y = 0