Question

Descăzut Scăzător 60 30 20 Rest 20 40 80​

Answer 1

Răspuns:

x- descazut

x-60=20

x= 20+60

x=80

proba

80-60=20

x-60=40

x=40+60

x=100

x-60=80

x=80+60

x=140

x-30=20

x=20+30

x=50

x-30=40

x=40+30

x=70

x-30=80

x=80+30

x=110

x-20=20

x=20+20

x=40

x-20=40

x=40+20

x=60

x-20=80

x=80+20

x=100