I need help with this question

Question

There were 15% more girls than boys on the local swim team. There were 3 more girls than boys. How many swimmers were there on the team?

Answer 1

G = 1.15B

G=B+3

1.15B = B+3

.15B = 3

B =3/.15 = 20 boys

G = 23 girls

B+G = 20+23 = 43 swimmers on the team

23 = 20 + 15%(20) = 20+.15(20) = 20+3 = 23

23 = 20+3 = 23