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x in (-oo:+oo)
(5/8)*(x-(1/3)) = 5/2 // - 5/2
(5/8)*(x-(1/3))-(5/2) = 0
(5/8)*(x-1/3)-5/2 = 0
5/8*(x-1/3)-5/2 = 0
(5/8*2*(x-1/3))/2-5/2 = 0
5/8*2*(x-1/3)-5 = 0
5/4*x-65/12 = 0
(5/4*x-65/12)/2 = 0
(5/4*x-65/12)/2 = 0 // * 2
5/4*x-65/12 = 0
5/4*x-65/12 = 0 // + 65/12
5/4*x = 65/12 // : 5/4
x = 65/12/5/4
x = 13/3
x = 13/3
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