Since there is a negative on the y term, we need to get rid of that and thus flip the sign at the same time. Getting.
-43>8/3y
Now we just need to divide 8/3 on both sides dividing 8/3 on left can also be written as *3/8
-43*3/8>y
Now flip this entire equation
y<-43*3/8
y<-129/8
If your teacher want you to calculate just divide the fraction, but I recommend not to if your teacher don't ask for it and just leave it this way.
Hope it helps! :D