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3*((19/16)*x-1)+2*x = 1643/16 // - 1643/16
3*((19/16)*x-1)+2*x-(1643/16) = 0
3*((19/16)*x-1)+2*x-1643/16 = 0
3*(19/16*x-1)+2*x-1643/16 = 0
(3*16*(19/16*x-1))/16+(2*16*x)/16-1643/16 = 0
3*16*(19/16*x-1)+2*16*x-1643 = 0
89*x-1643-48 = 0
89*x-1691 = 0
(89*x-1691)/16 = 0
(89*x-1691)/16 = 0 // * 16
89*x-1691 = 0
89*x-1691 = 0 // + 1691
89*x = 1691 // : 89
x = 1691/89
x = 19
x = 19
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