Question

Решите
2/5x -3 = 3/8

Answer 1

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

Ответ: $8frac{7}{16}$

Answer 2

2/5х-3=3/8

2/5х=27/8

0,4х=3,375

х=3,375÷0,4

х=8,4375