Question

упростите выражение 2/7y +5/14y -10/21y y=1.2

Answer 1

$frac{2}{7}y+ frac{5}{14}y- frac{10}{21} y;y=1,2\ \ frac{4}{14}y+ frac{5}{14}y- frac{10}{21} y;y=1,2\ \ frac{9}{14}y- frac{10}{21} y;y=1,2\ \ frac{27}{42}y- frac{20}{42} y;y=1,2\ \ frac{7}{42}y;y=1,2\ \ frac{1}{6}*1,2= frac{1}{5}$