Question

8/5x-0.8=0.2/0.15
По шагово мені тре об було зробляно

Answer 1

$frac{8}{5x} -0.8= frac{0.2}{0.15}$
$frac{8}{5x}= frac{0.2}{0.15} +0.8$
$frac{8}{5x}= frac{0.2}{0.15} +frac{8}{10}$
$frac{8}{5x}= frac{0.2*100}{0.15*100} +frac{4*3}{5*3}$
$frac{8}{5x}= frac{2}{15} +frac{12}{15}$
$frac{8}{5x}= frac{14}{15}$
$frac{8}{5x}*frac{5}{8}= frac{14}{15}*frac{5}{8}$
$frac{1}{x}= frac{70}{120}$
$x= frac{120}{70}$
$x= frac{12}{7}$
$x= 1frac{5}{7}$