Question

17/21y+9/14=5/21

Answer 1

$frac{17}{21}y+<var>frac{9}{14}</var>[/tex</var>]=[tex]<var>frac{5}{21}</var> [tex]<var>frac{17}{21}y=<var>frac{5}{21}$-frac{9}{14}[/tex]
[tex]frac{17}{21}y

Answer 2

17/21у=5/21-9/14

17/21у=-17/42

у=-17/42:17/21

у=-1/2