Решите уравнение 1 5/6–(х–7/12)+2 1/12 =0,9 и

1 5/6 - (x - 7/12) + 2 1/12 = 0,9
1 5/6 - (x - 7/12) = 9/10 - 2 1/12
1 5/6 - (x - 7/12) = 54/60 - 2 5/60
1 5/6 - (x - 7/12) = 54/60 - 1 65/60
1 5/6 - (x - 7/12) = -1 11/60
x - 7/12 = 1 5/6 - (-1 11/60)
x - 7/12 = 1 50/60 + 1 11/60
x - 7/12 = 2 61/60
x - 7/12 = 3 1/60
x = 3 1/60 + 7/12
x = 3 1/60 + 35/60
x = 3 36/60
x = 3 6/10
x = 3,6
ответ: 3,6