Răspuns:
121
Explicație pas cu pas:
(c-104+2)×5+3=98
(c-104+2)×5=98-3
(c-104+2)×5=95
(c-104+2)=95:5
(c-104+2)=19
c-104=19-2
c-104=17
c=17+104
c=121
Verificare:
(121-104+2)×5+3=
(17+2)×5+3=
19×5+3=
95+3=
98✔
