There are 76 students in the Breezewood Middle School chorus. The number of girls in the chorus is 13 more than twice the number of boys.

Question

Write an expression that represents the number of girls in the chorus if b represents the number of boys.
Using your expression from Part A, write an equation that could be used to determine the number of girls and boys in the chorus. Hint: the only variable in your equation should be b.
Use your equation to determine the number of boys and girls in the chorus. Show your work.

I don't really know how to solve this, can someone help?

Answer 1

twice the number of boys ----> 2b
13 more than twice the number of boys ----> 2x+13

so ....

Answer 2

A. 2b + 13 girls.

B. b + (2b+13) = 76,
b =
2b+13 =

Answer 3

b= 31.5
or
b=21
?????