👤

Afla suma a+b+c+d , stiind ca:
a+17=32
35+c=52
b-9=18
72-d=58


Răspuns :

a= 32 -17= 15            b=52-35= 17                c=18+9= 27          d=72-58=14                suma a+b+c+d = 15+17+27+14= 73