[tex]3y-20=7\implies y=\frac{20+7}{3}=9[/tex].
Hope this helps.
y= 9
Explanation:
=> 3y - 20 = 7
=> 3y = 7+20
=> 3y = 27
=> y = 27/3
=> y = 9
HOPE OT HELPS. ◉‿◉