Question

Exercițiul 13 / e , f , g , h
Va rog

Answer 1

e) (x+!)/2 - 3 =(x-1)/3 +2 
3x+3 -18 = 2x -2 +12
3x -2x = 18 -2 +12
x = 28
f) (3x +1)/3 -4/5 = (x-2)/5 +1/3
  15x +5 - 12 = 3x - 6 + 5
15x- 3x = -5 +12 -6 +5
12x = 6
x= 1/2
g) (3x -4)/2 -1/3 = 2(x-1)/3 +3/2
    9x -12 - 2 = 4x-4 +9
    9x- 4x = 12 +2 -4 +9
    5x = 19
      x = 19/5
h) 12x +6 - 15x-15 =10x-24
    6 -15 +24 = -12x +15x +10x
      15 = 13x
        x = 15/13