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Y+5 = (8/9)*(x-8) // - (8/9)*(x-8)
Y-((8/9)*(x-8))+5 = 0
(-8/9)*(x-8)+Y+5 = 0
Y-8/9*(x-8)+5 = 0
Y-8/9*(x-8)+5 = 0
Y-8/9*x+5+64/9 = 0
Y-8/9*x+109/9 = 0
Y-8/9*x+109/9 = 0
Y-8/9*x+109/9 = 0 // - Y+109/9
-8/9*x = -(Y+109/9) // : -8/9
x = (-(Y+109/9))/(-8/9)
x = 9/8*(Y+109/9)
x = 9/8*(Y+109/9)
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