# Devon purchased tickets to an air show for 7 adults and 2 children The total cost was $123. The cost of a child's ticket was $6 less than the cost of an adult's ticket. What is the price of an adult and child ticket?

##### 1 Answer

The adult's ticket is

#### Explanation:

There are two pieces of information here, so we will break them down and make two equations.

I will give

So we know that Devon purchased

The second parts says that the child's ticket is 6 less than the adult's ticket. "

Okay, know we can substitute that second equation into the first one and solve:

The adult's ticket is

The child's ticket costs