-x-x=y

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Solution for -x-x=y equation: 


Simplifying
-1x + -1x = y

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

Solving
-2x = y

Solving for variable 'x'.

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

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

Simplifying
x = -0.5y

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