1) b/7 = 12 2) 169/m = 13 3) 126/(8-у) = 21 4) х/4 = 5 5) 105/у = 7 6) (х+12)/6 = 14

Надеюсь что все понятно

1. b = 12*7b = 842. m = 169 : 13m = 133. 8 - y = 126 : 218 - y = 6y = 8 - 6y = 24. x = 5 * 4х = 205. y = 105 : 7y = 156. 14 * (х + 12) = 614х + 168 = 614х = -162х = -162 : 14х ~ 11, 5