👤

calculati numarul necunoscut si faceti proba; (b:3)*6=52-4 60-(e*9)=30:5 9*(c:6)=6*6 72-40=(f:3)*(40:50)

Răspuns :

1.(b:3)*6=52-4 => (24:3)*6=48 => 8*6=48 => 48=48. 2.60-(e*9)=30:5 => 60-(6*9)=6 => 60-54=6 => 6=6. 3. 9*(c:6)=6*6 => 9* (24:6)=36 => 9*4=36 => 36=36. Si al patru-lea nu mai stiy, scz.. :(