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g in (-oo:+oo)
(5*(5*g+6))/4 = 57.5 // - 57.5
(5*(5*g+6))/4-57.5 = 0
(5*(5*g+6))/4+(-57.5*4)/4 = 0
5*(5*g+6)-57.5*4 = 0
25*g-200 = 0
(25*g-200)/4 = 0
(25*g-200)/4 = 0 // * 4
25*g-200 = 0
25*g-200 = 0 // + 200
25*g = 200 // : 25
g = 200/25
g = 8
g = 8
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