\[x \cdot 86 - 9876 = 30544\]
\[x \cdot 86 = 30544 + 9876\]
\[x \cdot 86 = 40420\]
\[x = \frac{40420}{86}\]
\[x = 470\]
Ответ: x = 470
\[1000000 - (x - 319524) = 847955\]
\[x - 319524 = 1000000 - 847955\]
\[x - 319524 = 152045\]
\[x = 152045 + 319524\]
\[x = 471569\]
Ответ: x = 471569