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