Question

mă ajuta cineva dau coroana ​

Answer 1

Bunaa :)

a=62,b=15,c=90 iar d=22

Avem:

a+b=62+15=75

a-b=62-15=47

d-b=22-15=7

b+d=15+22=37

a+d=62+22=84

c-a=90-62=28

c-d=90-22=28

a-d=62-22=40

c-a-b=90-62-15=28-15=13

c-a-d=90-62-22=28-22=6

c-b-d=90-15-22=75-22=53

a+b-d=62+15-22=75-22=53