Question

(2/3х-1/6)*1 1/5=2,6 помогите пожалуйста срочноо , с объяснением

Answer 1

Пошаговое объяснение:

$\displaystyle\\(\frac{2}{3}x-\frac{1}{6})*1\frac{1}{5} =2,6\\\\ (\frac{2}{3}x-\frac{1}{6})*1\frac{1}{5}=2\frac{6}{10}\\\\(\frac{2}{3}x-\frac{1}{6})*1\frac{1}{5}=2\frac{3}{5} \\\\(\frac{2}{3}x-\frac{1}{6})*\frac{1*5+1}{5}=\frac{2*5+3}{5} \\\\(\frac{2}{3}x-\frac{1}{6})*\frac{6}{5}=\frac{13}{5} \ |*\frac{5}{6} \\\\\frac{2}{3} x-\frac{1}{6} =\frac{13}{6}\\\\\frac{2}{3}x=\frac{14}{6}\\\\\frac{2}{3}x =\frac{7}{3}\ |*\frac{3}{2} \\\\x=\frac{7}{2} =3\frac{1}{2}=3,5.$