Решите уравнение : (1 5/18 - 2 4/27) * 5,4 x = 9 1/2 + 2 1/4
-3/54=-1/18×54/10х=-3/10х 91/2+21/4=203/4=50,75 -3/10х=5075/1000 х=-5075/1000×10/3 х=-5075/300=203/12