There are 89 students in a school band. The number of boys in the band is 5 more than twice the number of girls.

Question

What is the expression for the number of girls and an expression fornthe number of using the variables g to represent the girls.

Answer 1

b = 2g+5
b+g = 89

so,

2g+5+g = 89

Your question is a bit garbled, but I expect you can devise an answer using the above equations.

Answer 2

There are 89 students in a band. The number of boys in the band is 5 more than twice the number of girls.

Answer 3

2x+5+y=122