Question

Помогите с уравнением

Answer 1

7 3/7 - (x - 3,2) = 5/7 * 2

7 3/7 - (x - 3,2) = 10/7 = 1 3/7

x - 3,2 = 7 3/7 - 1  3/7

x - 3,2 = 6

x = 6 + 3,2

x = 9,2