Rezolva i) 2.(4+3x)-1,4=18,9


Răspuns :

8+6x-1,4=18,9;           8+6x=20.3;   6x=12,3 
x=12.3/6  x=2.05
2. (4+3×)-1, 4=18, 9
8+6×-,1, 4=18, 9
6×-0, 6=18, 9
6×=1, 75