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3*((-3/2)*x+y) = 3*(-31/2) // - 3*(-31/2)
3*((-3/2)*x+y)-(3*(-31/2)) = 0
3*((-3/2)*x+y)+93/2 = 0
3*(y-3/2*x)+93/2 = 0
(2*3*(y-3/2*x))/2+93/2 = 0
2*3*(y-3/2*x)+93 = 0
6*y-9*x+93 = 0
(6*y-9*x+93)/2 = 0
(6*y-9*x+93)/2 = 0 // * 2
6*y-9*x+93 = 0
6*y-9*x+93 = 0 // - 6*y+93
-9*x = -(6*y+93) // : -9
x = (-(6*y+93))/(-9)
x = (6*y+93)/9
x = (6*y+93)/9
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