1/9x-3=-6; you add the 3 on each sides which crosses out on the left; then multiply by the reciprocal of 1/9 which is 9 and you get 9*-3 which equals -27
All you have to do is divide the left side of the ratio by 5 and the right side of the ratio by 7. The one that comes out even on both sides is the correct one.
