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Y+6 = (-9/12)*(x-8) // - (-9/12)*(x-8)
Y-((-9/12)*(x-8))+6 = 0
(3/4)*(x-8)+Y+6 = 0
3/4*(x-8)+Y+6 = 0
3/4*(x-8)+Y+6 = 0
Y+3/4*x-6+6 = 0
Y+3/4*x = 0
Y+3/4*x = 0
Y+3/4*x = 0 // - Y
3/4*x = -Y // : 3/4
x = -Y/3/4
x = -4/3*Y
x = -4/3*Y
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