Để tìm chữ số thích hợp thay vào x, y, m, n trong phương trình xy, mn - 0,xy = 19,94, ta thực hiện các bước sau:

1. Phân tích số 19,94 thành hai phần tử: 19 và 0,94.
2. Ta có xy, mn - 0,xy = 19,94. Thay vào giá trị 19 và 0,94 vào phương trình, ta có:
xy, mn - 0,xy = 19,94
xy, mn - 0,xy = 19 + 0,94
xy, mn - 0,xy = 19 + 94/100
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy = 19 + 47/50
xy, mn - 0,xy =