All you do is subtract 5.5 oz from 12.25 oz, so the answer is that the blue balloon has 6.75 more oz than the other balloon.
You want to start by subtracting 5 from both sides to get 2/3x=-8/3 then cross multiply to get whole numbers which is 6=-24x then your gonna want to isolate the variable so divide both sides by -24 to get 6/-24=x then you can simplify to x=-1/4
Answer is in screenshot. Can I now have Brainliest?