Question

Afla numerele necunoscute:
47+ax6=89
63-54:b=54
cx8-17=55

problema pentru cl II

Answer 1

1)
47+ax6=89
ax6=89-47
ax6=42
a=42:6
a=7
2)
63-54:b=54
54:b=63-54
54:b=9
b=54:9
b=6
3)
cx8-17=55
cx8=55+17
cx8=72
c=72:8
c=9