Programme 1 :  (0 + 5) × 2 = 10

Programme 2 :  2 × 0 + 10 = 10

Programme 1 : (6 + 5) × 2 = 22

   Programme 2 : 2 × 6 + 10 = 22

2)

a) Programme 1 : N = (n + 5) × 2

   Programme 2 : R = 2n + 10

N = (n + 5) × 2 = n×2 + 5×2 = 2n + 10 = R

  Leila a raison