-1=-y

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Solution for -1=-y equation: 


Simplifying
-1 = -1y

Solving
-1 = -1y

Solving for variable 'y'.

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

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

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

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

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

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

Simplifying
y = 1

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