Solve the equation for y.

8x - 9y = 11

8x-9y=11

First you move the 8x because you have to leave the 9y alone

8x-9y=11

-8x - 8x

-9y=11-8x

Now you have to move the - 9, so the inverse of multiplying is dividing so you divide - 9.

-9y/-9 = 11/-9 - 8x/-9

since you can't have negative as a denominator it would be:

y = - 11/9+8x/9

You have to change the signs