How do you solve 21s=3 ?

To solve the equation, you must isolate s, which means to get it alone on one side. Since you are multiplying s by 21, you must divide by 21 to get s alone. However, whatever you do to one side of the equation you must do to the other, so if you divide both sides by 21 and simplify it will give you s.

We can solve the question by this method-
21s=3
=s=3/21
=s=1/7

Just a question- could you organize the data better? i just cannot tell which number are for which bakery. i will be happy to answer this question if you could do this for me! : )

/-/////////looks tough ‍♂️