Răspuns :
Răspuns:
(X+7-10)×2+10=60
(X+7-10)×2=50
X+7-10=25
X+7=35
X=28
Răspuns:
Salutare!
(x+7-10)×2+10=60
(x+7-10)×2=60-10
(x+7-10)×2=50
(x+7-10)=50:2
x+7-10=25
x+7=25+10
×+7=35
x=35-7
x=28
Verificare:
(28+7-10)×2+10=
(35-10)×2+10=
25×2+10=
50+10=
60
#Succes!