Need help with another word problem

The swim team sold tickets to their skit night to earn money to go to the finals in another city that was 200 miles away. They sold 4 adult tickets for each child's ticket. If they sold 155 tickets, how many adults bought tickets? Is this equation correct
child x, adult 4x+x
4x+x+x = 155,

2 answers

4x + x 155

5x = 155

x = 31
The answer is 124