Răspuns :
(b+39)×6=480
b+39=480:6
b+39=80
b=80-39
b=41
(41+39)×6=80×6=480
Răspuns:
b=41
Explicație pas cu pas:
(b+39)×6=480
(b+39)=480÷6
(b+39)=80
b=80-39
b=41
(b+39)×6=480
b+39=480:6
b+39=80
b=80-39
b=41
(41+39)×6=80×6=480
Răspuns:
b=41
Explicație pas cu pas:
(b+39)×6=480
(b+39)=480÷6
(b+39)=80
b=80-39
b=41