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4/5 = (-1/3)*x-((3/4)*y) // - (-1/3)*x-((3/4)*y)
(3/4)*y-((-1/3)*x)+4/5 = 0
(1/3)*x+(3/4)*y+4/5 = 0
1/3*x+3/4*y+4/5 = 0 // - 3/4*y+4/5
1/3*x = -(3/4*y+4/5) // : 1/3
x = (-(3/4*y+4/5))/1/3
x = -3*(3/4*y+4/5)
x = -3*(3/4*y+4/5)
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