y=-1/2x-1

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Solution for y=-1/2x-1 equation: 


x in (-oo:+oo)

y = (-1/2)*x-1 // - (-1/2)*x-1

y-((-1/2)*x)+1 = 0

(1/2)*x+y+1 = 0

1/2*x+y+1 = 0 // - y+1

1/2*x = -(y+1) // : 1/2

x = (-(y+1))/1/2

x = -2*(y+1)

x = -2*(y+1)

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