Răspuns :
a : 6 = 6 => a = 6 * 6 a = 36
a : b = 6 => a = 6b
b = 36 : 6 => b = 6
a : c = 2 => a = 2c 36 = 2c
c = 36 : 2 => c = 18
a - c = 18
36 - 18 = 18
18 = 18
a : b = 6 => a = 6b
b = 36 : 6 => b = 6
a : c = 2 => a = 2c 36 = 2c
c = 36 : 2 => c = 18
a - c = 18
36 - 18 = 18
18 = 18