[tex](21 - x) \times 6 + 3 = 22.82 \times 0.6 = 13.692 \\ (21 - x) \times 6 = 13.692 - 3 = 10.692 \\ 21 - x = 10.692 \div 6 \\ 21 - x = 1.782 \\ - x = 1.782 - 21 \\ - x = - 19.218 \\ x = 19.218[/tex]
Răspuns:
Explicație pas cu pas:
Buna seara!
(21-x)•6+3:0,6=22,82⇒
126-6x+30:6=22,82⇒
126-6x+5=22,82⇒
131-6x=22,82⇒
131-22,82=6x⇒
108,18=6x⇒
x=108,18:6⇒
x=18,03
Succes!
