Question

решите уравнение

(х- 2/5) :1,6 = 4

Answer 1

(х-$frac{2}{5}$):1,6=4

$frac{5}{8} x-frac{1}{4} =4$

5x-2=32

5x=34

x=$frac{34}{5}$

x=$frac6{4}{5}$

Answer 2

x =6.8

Answer 3

x-0.4=6.4

x=6.4+0.4=6.8