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18*x-((3*y)/8) = 0
18*x+(-3/8)*y = 0
18*x-3/8*y = 0 // + -3/8*y
18*x = -(-3/8*y) // : 18
x = (-(-3/8*y))/18
x = 1/48*y
x = 1/48*y
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