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(25*(19-(2*x)))/12 = 19 // - 19
(25*(19-(2*x)))/12-19 = 0
(25*(19-2*x))/12-19 = 0
(25*(19-2*x))/12+(-19*12)/12 = 0
25*(19-2*x)-19*12 = 0
247-50*x = 0
(247-50*x)/12 = 0
(247-50*x)/12 = 0 // * 12
247-50*x = 0
247-50*x = 0 // - 247
-50*x = -247 // : -50
x = -247/(-50)
x = 247/50
x = 247/50
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