Question

5/12x - 3/10x=2 помогите пожалуйста , дам 30 баллов

Answer 1

$\frac{5}{12} x - \frac{3}{10} x = 2 \\ \frac{5x \times 5 - 3x \times 6}{60} = \frac{2 \times 60}{60} \\ \frac{25x - 18x}{60} = \frac{120}{60} \\ 25x - 18x = 120 \\ 7x = 120 \\ x = \frac{120}{7} = 17 \frac{1}{7} \\ x = 17 \frac{1}{7}$