Question

3x+8.1/6=12,2
спасибо:)

Answer 1

$3x + 8 frac{1}{6} = 12,2$ 
$3x + frac{49}{6}=12,2$ 
$3x*6+ frac{49*6}{6} =12,2*6$ 
$18x+49=73,2$
$18x=73,2-49$ 
$18x=24,2$ 
$x = 24,2:18$
$x= frac{242}{180}=1 frac{31}{90}$
$x=1 frac{31}{90}$