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Y-7 = (3/2)*(x-3) // - (3/2)*(x-3)
Y-((3/2)*(x-3))-7 = 0
(-3/2)*(x-3)+Y-7 = 0
Y-3/2*(x-3)-7 = 0
Y-3/2*(x-3)-7 = 0
Y-3/2*x-7+9/2 = 0
Y-3/2*x-5/2 = 0
Y-3/2*x-5/2 = 0
Y-3/2*x-5/2 = 0 // - Y-5/2
-3/2*x = -(Y-5/2) // : -3/2
x = (-(Y-5/2))/(-3/2)
x = -2/3*(5/2-Y)
x = -2/3*(5/2-Y)
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