I2x + 14I = 6 I9x-18I = 27 I8x +12I = 20 I15 x - 10I = 5 I9x + 15I = 6 I8x - 6I = 14' IIxI - 3I = 0 I5- IxII = 0 IIxI + 3I = 0 I7 - IxII=0

I2x + 14I = 6 2х=-14+6 2х=-8 х=-8/2 х=-4 I9x-18I = 27 9х=27+18 9х=45 х=45/9 х= 5 I8x +12I = 20  8х=20-12 8х=8 х=8/8 х=1 I15 x - 10I = 5  15х=10+5 х=15/15 х=1 I9x + 15I = 6 9х=6-15 9х=-9 х=-9/9 х=-1 I8x - 6I = 14 8х=14+6 8х=20 х=20/8 х=2.5 IIxI - 3I = 0 х=3 I5- IxII = 0 х= 5 IIxI + 3I = 0 х=-3 I7 - IxII=0 х=7