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