- a - 7 5/6 = 7,5 РЕшите уравнение
2 - a - 7 5/6 = 7,5 - a = 7,5+7 5/6 -а=15 1/3 а=-15 1/37 5/6 +7,5=7 5/6+7 1/2=14 (5+3)/6=14 8/6=14 4/3=15 1/3