You have $16 and a $5 discount coupon for your local supermarket. Olive oil cost $7. How many bottles of olive oil can you buy

Question

Show Equation and define variable. Show work

Answer 1

Jupiter, the variable is how many bottles of olive oil we can buy. We can call it anything we want. 

 

Let o = the number of olive oil bottles we can buy.

 

7o = 16 + 5

7o = 21

o = 3

 

We can buy 3 bottles of olive oil.