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3*x-((y/11)*y) = 1 // - 1
3*x-((y/11)*y)-1 = 0
3*x+(-1/11)*y^2-1 = 0
3*x-1/11*y^2-1 = 0 // + -1/11*y^2-1
3*x = -(-1/11*y^2-1) // : 3
x = (-(-1/11*y^2-1))/3
x = (1-(-1/11*y^2))/3
x = (1-(-1/11*y^2))/3
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