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3*((19/16)*x-1)+2*x = 77/4 // - 77/4
3*((19/16)*x-1)+2*x-(77/4) = 0
3*((19/16)*x-1)+2*x-77/4 = 0
3*(19/16*x-1)+2*x-77/4 = 0
(3*4*(19/16*x-1))/4+(2*4*x)/4-77/4 = 0
3*4*(19/16*x-1)+2*4*x-77 = 0
89/4*x-77-12 = 0
89/4*x-89 = 0
(89/4*x-89)/4 = 0
(89/4*x-89)/4 = 0 // * 4
89/4*x-89 = 0
89/4*x-89 = 0 // + 89
89/4*x = 89 // : 89/4
x = 89/89/4
x = 4
x = 4
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