Inactive Tutor answered 11/10/20
We first need to establish the total number of people. In this case, we have you and three friends, which makes four people total. The cost per person for a soda and nachos would be 2 + x, where the 2 is the price of the soda and the x is the price of the nachos. We then have to multiply this expression by 4 because 4 people are ordering this.
4(2 + x)
By distributing the 4, we end up with
8 + 4x
If nachos cost $3, we can simply substitute a 3 into the equation for x
8 + 4(3)
Multiplying out gives us
8 + 12
And to find our final answer, we add.
The group would pay $20