Ответ:
- \(1.23x - 1.229x = 1.8\).
\((1.23 - 1.229)x = 1.8\).
\(0.001x = 1.8\).
\(x = 1.8 : 0.001 = 1800\). - \((x + 2.4) \cdot 0.18 = 61.2\).
\(x + 2.4 = 61.2 : 0.18 = 340\).
\(x = 340 - 2.4 = 337.6\).
Ответ: 1) x = 1800; 2) x = 337,6.
Ответ: 1) x = 1800; 2) x = 337,6.