g) (13:x-1).13=0; va rog dau coroana si 100 de puncte​

Răspuns: [tex]\red{\large \boxed{\bf x=13}}[/tex]

Explicație pas cu pas:

[tex]\large \bf (13:x-1)\cdot 13 = 0~~~~~\bigg|\cdot 13[/tex]

[tex]\large \bf 13:x-1=0[/tex]

[tex]\large \bf 13:x=0 +1[/tex]

[tex]\large \bf 13:x=1[/tex]

[tex]\large \bf 13:x = 1~~\bigg|\cdot x[/tex]

[tex]\red{\large \boxed{\bf x=13}}[/tex]

#copaceibrainly

[tex]\it (13:x-1)\cdot13=0 \Rightarrow 13:x-1=0 \Rightarrow 13:x=1 \Rightarrow x=13[/tex]