Odpowiedź:
a + 2 i 3/5 = 7
a = 7 - 2 i 3/5 = 6 i 5/5 - 2 i 3/5
a = 4 i 2/5
sprawdzenie 4 i 2/5 + 2 i 3/5 = 6 i 5/5 = 7
3 i 1/2 + b = 5 i 1/5
b = 5 i 1/5 - 3 i 1/2 = 5 i 2/10 - 3 i 5/10 = 4 i 12/10 - 3 i 5/10
b = 1 i 7/10
spr 3 i 1/2 + 1 i 7/10 = 3 i 5/10 + 1 i 7/10 = 4 i 12/10 = 5 i 2/10 = 5 i 1/5
