👤

[7+(50-7a):2]×3=33 Ajutor va rog frumos.

Răspuns :

[7+(50-7a):2]×3=33
7+(50-7a):2=33:3
7+(50-7a):2=11
(50-7a):2=11-7
(50-7a):2=4
50-7a=4×2
50-7a=8
7a=50-8
7a=42
a=42:7
a=6