If candies have a cost x cents less per dozen, it would have cost 3 cents less for x+3 candies then if they had cost x cents more per dozen. what is x?

The equation is -3=x+3
Then, subtract 3 from 3 on both sides.
You get -6=x.
Hope this helps!

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.