-X-y=-1

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Solution for -X-y=-1 equation: 


Simplifying
-1X + -1y = -1

Solving
-1X + -1y = -1

Solving for variable 'X'.

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

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 + -1y

Simplifying
X = 1 + -1y

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