👤

Rezolvati
b)3+{4•[2+(6+x):3]-17}•7=24
c)x+(x+1)+(x+2)+...+(x+50)=50+1280


Răspuns :

b) 3+{4•[2+(6+x):3]-17}•7=24|-3=21
4•[2+(6+x):3]-17=21|:7=3
4•[2+(6+x):3]=3|+17=20
2+(6+x):3=20|:4=5
(6+x):3=5|-2=3
6+x=3|•3=9
x=9-6
x=3
Sper ca ti-am fost de ajutor