Explicație pas cu pas:
ღSalutare!ღ
•Afla valoarea lui a:
{[(5×a-194)×5-3]×19+12}:25=2
[(5×a-194)×5-3]×19+12=2×25
[(5×a-194)×5-3]×19+12=50
[(5×a-194)×5-3]×19=50-12
[(5×a-194)×5-3]×19=38
(5×a-194)×5-3=38:19
(5×a-194)×5-3=2
(5×a-194)×5=2+3
(5×a-194)×5=5
5×a-194=5:5
5×a-194=1
5×a=1+194
5×a=195
a=195:5
a=39
Succes!;)
