Question

rezolvați ecuația 0,(6)-2,8(3)x= 5,25-2x ajutor plzz rapid​

Answer 1

Răspuns:

0,(6)=(6/9)⁽³=2/3

2,8(3)=(283-28)/90=(255/90)⁽¹⁵=17/6

5,25=(525/100)⁽²⁵=21/4

⁴⁾2/3-²⁾17x/6=³⁾21/4-¹²⁾2x

8-34x=63-24x

-34x+24x=63-8

-10x=55=>x= 55/10=>x= -5,5