.5x-y=-1

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Solution for .5x-y=-1 equation: 


Simplifying
0.5x + -1y = -1

Solving
0.5x + -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.
0.5x + -1y + y = -1 + y

Combine like terms: -1y + y = 0
0.5x + 0 = -1 + y
0.5x = -1 + y

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

Simplifying
x = -2 + 2y

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