Question

Найдите х, если 5х-8/5=1 2\5

Answer 1

$5x - \frac{8}{5} = 1 \frac{2}{5} \\ 5x = 1 \frac{2}{5} + 1 \frac{3}{5} \\ 5x = 3 \\ x = \frac{3}{5} \\ x = 0.6$

Answer 2

$\displaystyle \frac{5x-8}{5} =1\frac{2}{5} \\\\\frac{5x-8}{5} =\frac{7}{5} \\\\5x-8=7\\\\5x=7+8\\\\5x=15\\\\x=15:5\\\\x=3$