1 (x1 + x2 + x3 + x4 + x5) : 5 = 3
x1 + x2 + x3 + x4 + x5 = 15
(x1 + x2 + x3 + x4 + x5 + x6) : 6 = 4
15 + x6 = 24
x6 = 9
15+9 = 24:6 = 4
Prawda
2 (x1 + x2 + x3 + x4 + x5) : 5) = 3
x1 + x2 + x3 + x4 + x5 = 15
(x1 + x2 + x3 + x4 + x5 + 3) : 6 = (15 + 3) : 6 = 18 :6) 3
Prawda