The correct option is C 8 dollars
Cost of 5 pizzas = 30 dollars
Each pizza is given a discount of 2 dollars.
Let x be the original price of pizza.
∴ Price of pizza after discount = (x - 2) dollars.
So, the required equation is:
5(x-2) = 30
Simplifying the LHS, we observe:
5x - 10 = 30
Now adding 10 to both sides, we get:
⇒5x−10+10=30+10
⇒5x=40
Dividing both sides by 5, we get:
⇒5x5=405
⇒x=8
Hence, the cost of 1 pizza without discount = 8 dollars.