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Y-4 = (-1/3)*(x-2) // - (-1/3)*(x-2)
Y-((-1/3)*(x-2))-4 = 0
(1/3)*(x-2)+Y-4 = 0
1/3*(x-2)+Y-4 = 0
1/3*(x-2)+Y-4 = 0
Y+1/3*x-4-2/3 = 0
Y+1/3*x-14/3 = 0
Y+1/3*x-14/3 = 0
Y+1/3*x-14/3 = 0 // - Y-14/3
1/3*x = -(Y-14/3) // : 1/3
x = (-(Y-14/3))/1/3
x = 3*(14/3-Y)
x = 3*(14/3-Y)
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