👤
Cristian01727
a fost răspuns

sa se afle x din. 3× {[(2×X- 2 3 - 3]: 3 - 5 = 10​

Răspuns :

3 × ( 2 × X - 23 - 3 ) : 3 - 5 = 10

3 × ( 2 × X - 23 - 3 ) : 3 = 10 + 5

3 × ( 2 × X - 23 - 3 ) : 3 = 15

3 × ( 2 × X - 23 - 3 ) = 15 × 3

3 × ( 2 × X - 23 - 3 ) = 45

2 × X - 23 - 3 = 45 : 3

2 × X - 23 - 3 = 15

2 × X - 23 = 15 + 3

2 × X - 23 = 18

2 × X = 18 + 23

2 × X = 41

x = 41 : 2

x = 20, 5