Verified answer

Ответ:

0.48

Пошаговое объяснение:

8.1х-4.7х=1.66

3.4х=1.66

х=1.66/3.4

х=0.48

Ответ:

[tex]8.1x - 4.7x = 1.66 \\ 3.4x = 1.66 \\ x = 1.66 \div 3.4 \\ x = \frac{166}{100} \div \frac{34}{10} = \frac{166}{100} \times \frac{10}{34} = \frac{83}{170} = 0.49[/tex]