Question

решите уравнение 2/5 + (3/5 - x) =3/5

Answer 1

2/5 + (3/5 - x) =3/5; 2/5+3/5-х=3/5; -х=3/5-2/5-3/5; Х=2/5

Answer 2

2/5 + (3/5 - x) =3/5
2/5 + 3/5 - x =3/5
 - x = 3/5 - 2/5 - 3/5
 - х = - 4/5
   х = 4/5
   х = 0,8