Question

Решите
2/5x -3 = 3/8

Answer 1

$\frac{2}{5}x-3=\frac{3}{8}\\ \\ \frac{2}{5}x= \frac{3}{8}+3\\ \\ \frac{2}{5}x= 3\frac{3}{8}\\ \\ x=3\frac{3}{8}:\frac{2}{5}\\ \\ x=\frac{27}{8}\cdot\frac{5}{2}\\ \\ x=\frac{135}{16}\\ \\ x=8\frac{7}{16}$

Ответ: $8\frac{7}{16}$

Answer 2

2/5х-3=3/8

2/5х=27/8

0,4х=3,375

х=3,375÷0,4

х=8,4375