Răspuns :
2x-5,3=0,78
; 2x=0,78+5,3. ; 2x=6,08. ; x=6,08:2. ; x=3,04 ,sper ca te-am ajutat !!
2x-5,3=0,78
2x=0,78+5,3
2x=6,08
x=6,08:2
x=3,04
proba: 2*3,04-5,3=6,08-5,3=0,78
2x=0,78+5,3
2x=6,08
x=6,08:2
x=3,04
proba: 2*3,04-5,3=6,08-5,3=0,78
