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y-7 = (-19/8)*(x-1) // - (-19/8)*(x-1)
y-((-19/8)*(x-1))-7 = 0
(19/8)*(x-1)+y-7 = 0
19/8*(x-1)+y-7 = 0
19/8*(x-1)+y-7 = 0
19/8*x+y-7-19/8 = 0
19/8*x+y-75/8 = 0
19/8*x+y-75/8 = 0
19/8*x+y-75/8 = 0 // - y-75/8
19/8*x = -(y-75/8) // : 19/8
x = (-(y-75/8))/19/8
x = 8/19*(75/8-y)
x = 8/19*(75/8-y)
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