Question

vă rogg repede dau coroana ​

Answer 1

Răspuns:

2/5(3+1/4 :x) = 4/3

2/5(3+1/4·1/x) = 4/3

2/5(3+1/4x) = 4/3

3+1/4x = 4/3 · 2/5

3+1/4x = 10/3

1/4x = 10/3 - 3

1/4x = (10-9)/3

1/4x = 1/3

4x = 3 ⇒ x = 3/4