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y-130 = (-13/2)*(x+0) // - (-13/2)*(x+0)
y-((-13/2)*(x+0))-130 = 0
(13/2)*x+y-130 = 0
13/2*x+y-130 = 0 // - y-130
13/2*x = -(y-130) // : 13/2
x = (-(y-130))/13/2
x = 2/13*(130-y)
x = 2/13*(130-y)
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