Answer:

Explanation:
Given : Nando has 4 goldfish. Jill has 3 goldfish. Cooper has 2 times as many goldfish as Nando and Jill combined.
i.e. Number of goldfish Cooper has =

To write the equation that compares the number of goldfish Cooper has with the number of goldfish that Nando and Jill have , we denote the number of goldfish Cooper has as "c", we get

Hence, the required equation :
