Question

Calculati x+y+z, stiind ca numerele rationale x,y,z verifica relatiile:

x/x+1=y/y+2=z/z+3 si 1/x+2/y+3/z=54

Answer 1

x, y si z sunt marimi direct proportionale cu 1,2, si 3 deci

1/x+2/y+3/z=54 ⇒1/x=54⇒x=1/54

                              2/y=54⇒y=2/54 care se simplifica cu 2=1/27

                              3/z=54⇒z=3/54 care se simplifica cu 2=1/18

de aici copie ce am scris in paint ca daca scriu asa nu cred ca se intelege. dupa ce copii ce am scris in paint scrii ca rezulta ca x/x+1=y/y+2=z/z+3