Question

Ajutor!!!!!!!!!!!!!!!!!​​

Answer 1

Explicație pas cu pas:

$9.3 + 9.3 + x = 2 \times (4 \frac{3}{4} + x - 0.15) \\ 18.6 + x = 2 \times ( \frac{19}{4} + x - \frac{15}{100} ) \\ 18.6 + x = \frac{19}{2} + 2x - \frac{15}{50} \\ 2x - x = \frac{186}{10} - \frac{19}{2} + \frac{15}{50} \\ x = \frac{186}{10} - \frac{95}{10} + \frac{3}{10} = \frac{94}{10} = 9.4$

x = 9,4