Реши уравнение: а)12,78x + 3,84x +2,22x + 1,16x-0,3x =197; б)5,25x + 7,56x + 4,98x - 1,25x + 0,02x = 1,656; в)0,75x + 3,8x + 0,25x + 1,2x + 9,84x = 15,84
а)12,78x + 3,84x +2,22x + 1,16x-0,3x =197; 19.7х=197 х=197:19.7 х=10 б)5,25x + 7,56x + 4,98x - 1,25x + 0,02x = 1,656; 16.56х=1.656 х=1.656:16.56 х=0.1 в)0,75x + 3,8x + 0,25x + 1,2x + 9,84x = 15,84 15.84х=15.84 х=15.84:15.84 х=1
А)12,78x + 3,84x +2,22x + 1,16x-0,3x =197 19.7х = 197 х = 197/19.7 х = 10