Question

1-y=16/21-8/21
реши уравнение

Answer 1

$1-y= frac{8}{21}$
$y = 1 - frac{8}{21}$
$y = frac{13}{21}$

Answer 2

1-у=16/21-8/21
-у=8/21-1
у=-13/21/(-1)
у=13/21