Question

Aflati x,y,z, Daca x 2,5=y0,5=z5 si x+y+z=78

Answer 1

Baftaaaaaa!!!!!! Sper sa intelegi scrisul

Answer 2

Explicație pas cu pas:

x 2,5=y0,5=z5 <=> 5x=y=10z

x=2z

y=10z

x+y+z=78 <=> 2z+10z+z=78

13z=78

z=6

x=2z=12

y=10z=60

x+y+z=6+12+60=78