(? x 3) - 3 = 15

help pls and i need the steps :/

4

Step-by-step explanation:

Lets make be the ? in the equation.

That becomes ( x 3) - 3 = 15.

First you have to add 3 on both sides. After doing that it gets to ( x 3) = 15 - 3.

Then you simplify it to 3 = 12.

Now you divide 3 on both sides. That gets to = 4 after doing it.

Hope this helped! If not, please let me know! <3

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour