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(((3/2)*x^1)/3)*y = 4 // - 4
(((3/2)*x^1)/3)*y-4 = 0
(((3/2)*x)/3)*y-4 = 0
1/2*x*y-4 = 0 // + 4
1/2*x*y = 4 // : 1/2*y
x = 4/(1/2*y)
x = 8*y^-1
x = 8*y^-1
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