Question

exercițiul trei va rog

Answer 1

2(x-a)+3= a/2⇒ 4x-4a+6=a⇒ 4x+6= 5a ⇒a= (4x+6)/5

x/3-1=a⇒ x-3=3a⇒ a=(x-3)/3;

(4x+6)/5= (x-3)/3 ⇒(4x+6)*3= 5*(x-3)⇒12x+18= 5x-15⇔12x-5x=-18-15⇔
⇔7x= -33⇔ x= -33/7