-y-y=-1

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Solution for -y-y=-1 equation: 


Simplifying
-1y + -1y = -1

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

Solving
-2y = -1

Solving for variable 'y'.

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

Divide each side by '-2'.
y = 0.5

Simplifying
y = 0.5

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