Simultaneous equations - please help

Question

at a birthday party for 20 people each person could order a hot dog or a bucket of chips. if there were four times as many hot dogs as buckets of chips calculate how many hot dogs and how many buckets of chips were bought

Answer 1

If B is the number of buckets of chips then 4B is the number of hot dogs( 4 times as many hot dogs as buckets of chips)

So B + 4B = 20

5B=20 B = 4 ( number of buckets of chips) and 4B=16 (number of hot dogs)