Question

помогите решить уравнение!!!

Answer 1

(9/25 - x) + 1/2 = 3/5
9/25 - x + 1/2 = 3/5
9/25 - x = 3/5 - 1/2
9/25 - x = 6/10 - 5/10
9/25 - x = 1/10
x = 9/25 - 1/10
x = 18/50 - 5/50 = 13/50 = 0.26

Answer 2

огромное спасибо!