Решить 64x+108y=2,8 188x+170y=5,28

64x+108y=2,8
188x+170y=5,28
64x=2,8-108y |:2
32x=1,4-54y |:2
16x=0,7-27y |:2
8x=0,35-13,5y |:2
4x=0,175-6,25y |:2
2x=0,0875-3,125y |:2
x=0,04375-1,5625y
(0,04375-1,5625y)*188+170y=5,28
-293,75y+8.225+170y=5.28
-123,75y+8.225=5.28
-123,75y=5.28-8.225
123,75y=2.945 |*100
12375y=294,5 :12375
y=294,5/12375
64x=2,8-108(294,5/12375)
x = 0.01
y = 0.02