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

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


x in (-oo:+oo)

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

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

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

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

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

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

1/2*x+y+3/2 = 0

1/2*x+y+3/2 = 0

1/2*x+y+3/2 = 0 // - y+3/2

1/2*x = -(y+3/2) // : 1/2

x = (-(y+3/2))/1/2

x = -2*(y+3/2)

x = -2*(y+3/2)

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