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x in (-oo:+oo)
(10*(x-2))/5 = 15 // - 15
(10*(x-2))/5-15 = 0
(10*(x-2))/5+(-15*5)/5 = 0
10*(x-2)-15*5 = 0
10*x-95 = 0
(10*x-95)/5 = 0
(10*x-95)/5 = 0 // * 5
10*x-95 = 0
10*x-95 = 0 // + 95
10*x = 95 // : 10
x = 95/10
x = 19/2
x = 19/2
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