Jen butler has been pricing Speed Pass train fares for a group trip to New York. Three adults and four children must pay $97. Two adults and three children must pay $69. Find the price of the adult ticket and price of a child’s ticket.

Answer 1

3 a + 4 c = 97
2 a + 3 c = 69

6 a + 8 c = 194
6 a + 9 c = 207
--------------------- subtract
- c = - 113
c = 113
go back for a

Answer 2

whoops typo, c= 13